There's too many variables/questions to come up with anything approaching a definitive answer with high confidence, but let's at least take a look at some of the variables involved and try to make a guess.
These are some post-1993 seasons in which Lemieux was still in his prime (1993 and before is more his peak than prime... after 2001 is outside of his prime) in terms of the league scoring environment, the Penguins' scoring performance, and Lemieux's own performance:
NOTE: PPOPG = power play opportunities per game ES = even strength ML = Mario Lemieux
| Avg. Team GPG | Avg. Team ES GPG | Avg. Team PPOPG | ML GP | ML ES PTS | ML PP+SH PTS | ML ES PPG | ML PP+SH PPG |
1993-94 | 3.24 | 2.24 | 4.85 | 22 | 22 | 15 | 1.00 | 0.68 |
1994-95 | 2.98 | 2.08 | 4.35 | | | | | |
1994-95 (East) | 2.88 | 2.08 | 4.15 | | | | | |
1995-96 | 3.15 | 2.10 | 5.04 | 70 | 73 | 88 | 1.04 | 1.26 |
1996-97 | 2.91 | 2.12 | 4.10 | 76 | 79 | 43 | 1.04 | 0.57 |
2000-01 | 2.76 | 1.88 | 4.59 | 43 | 43 | 32 | 1.00 | 0.74 |
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So I see these as the primary variables, from which we can make a guess at his points scored in 1994-95:
GP: How many games would Lemieux have played?
ES PPG : What would Lemieux's ES PPG have been?
PP & SH Points: What would Lemieux's special teams points have been?
Games Played: Even after taking the '95 season off, Lemieux didn't play back to back games in the 1995-96 season. Given that he wouldn't have had that year of rest, it seems reasonable to assume he would have not played back to back games in 1994-95. That's not a certainty though, because he did play back to back games in 1996-97 (although he missed 6 games), and in 2000-01 (although he had three years of rest before that season). 2000-01 was somewhat similar to 1994-95, in that he played 43/46 of the Penguins' remaining games from Dec. 27 to April 8, while the 1994-95 schedule was 48 games from Jan. 20 to May 3. The Penguins had 9 pairs of back to back games on the accelerated 1994-95 schedule. Even when playing back to back games, Lemieux still missed some games (6/82 in '97 and 3/46 in '01). We should also note that while Lemieux only played 22 regular season games in 1993-94, these were mostly in the latter part of the season, as he played 18 of the Pens' final 30 games, then played in all six of their playoff games. So he wouldn't be nearly as rested in 1994-95 as he was in 1995-96.
Best guesses: Low end- He doesn't play back to back games, so plays 39 games. High end- He plays back to back games, but still misses 3 games, so plays 45 games. Best guess- Midpoint of 42 games.
Even Strength Points: Fortunately, this number was incredibly steady during Lemieux's non-peak prime years, twice being 1.00 and twice being 1.04. The NHL ES GPG was 2.08, which was very similar to '96 (2.10) and '97 (2.12), which were the two largest samples of his play in this period. It was higher in '94 (2.24) and lower in '08 (1.88), so there doesn't seem to be any reason to expect a big change in his ES PPG. So the low end is 1.00, the high end 1.04, with best guess being the average or 1.02.
Best case: 45 GP x 1.04 ES PPG = 46.8 ES Points
Worst case: 39 GP x 1.00 ES PPG = 39 ES Points
Best guess: 42 GP x 1.02 ES PPG = 42.8 ES Points
PP Points: This is by far the most difficult variable at which to guess. The Pens' 1995-96 power play was historically great, although their power play was usually excellent under Lemieux (21.8% in '97), who was probably as good as anyone in history on the power play. Still, I don't think we could expect Lemieux to produce at quite the level which he did in 1995-96, since he wouldn't have been nearly as rested, and so probably wouldn't have been able to play nearly as high of a % of PP ice time. The Pens' 1994-95 power play was ~7.2% more effective than league average (19.0% vs. 17.7%), so I used this ratio to calculate the Pens' PP% w/o Lemieux in '94, '96, '97 & '01, then used that calculate their PP% with Lemieux in those years:
1994: 15.5%
1996: 27.1%
1997: 22.2%
2001: 22.5%
I think we can toss 1994 as an anomaly based on small sample. So for PP%, our high end would be 27.1%, the low end 22.2% and the best guess is an average of '97 & '01 or ~22.3%. For the same reason, I'm only going to sue '96, '97 & '01 to calculate his PP points as a % of PP goals in games he plays. Those numbers are calculated to be:
1996: 81.3%
1997: 53.1%
2001: 72.4%
A simple average of those numbers is 68.9%, while a weighted average is 70.1%. We'll go with 70.1%. as a best guess, with the high & low ends being the extremes.
Best case: 45 GP = ~207 PPO * .271 PP% = 56.2 PPG * 81.3% PPP% = 45.7 PP Points
Worst case: 39 GP = ~180 PPO * .222 PP% = 39.8 PPG * 53.1% PPP% = 21.1 PP Points
Best guess: 42 GP = ~193 PPO * .223 PP% = 43.2 PPG * 70.1% PPP% = 30.3 PP Points
SH Points: We also need to know how many SH points he'd score. He didn't score any in '94 and only one in '01, so we'll discard those as anomalies due to injury/age. Instead we'll look at '96 & '97 in terms of how many SH points he scored as a % of non-SH points:
1996 = 9/152 or 5.9%
1997 = 6/116 or 5.2%
So the low end would be 5.2%, the high end 5.9%, and best guess the average of the two at 5.55%.
CONCLUSION:
Best case scenario, with about every benefit of the doubt given to Lemieux:
45 GP, 46.8 ESP, 45.7 PPP, 5.5 SHP = 98 Points
Worst case scenario, using the most conservative realistic estimates:
39 GP, 39 ESP, 21.1 PPP, 3.1 SHP = 63 Points
Best guess, given the great uncertainty of many variables:
42 GP, 42.8 ESP, 30.3 PPP, 3.7 SHP = 77 Points
So there's a good chance he would win the Ross, although not a certainty. As far as the fate of the Penguins in the playoffs, if we assume Lemieux's production is enough to put the Pens ahead of Quebec in the standings, then they would play the Rangers in the first round. I think it's safe to say the would have beaten them, given that they took the season series 3-0 and dispatched the Rangers both in '92 (in a tough series, mostly w/o Lemieux) and '96 (fairly easily). They still would have faced the Devils in the second round, whether Quebec or the Caps faced the Flyers, so no difference in their fate.
I know this was way longer than necessary, but I enjoyed the methodology of constructing a range and best guess for Lemieux's performance if he had played in 1994-95.