I would be shocked if it happened. It is not fair to other teams who can choose and pick on the expansion draft. There are too many good players out there and they can easily feast on their young players who might actually develop into superstars while at the same time using the draft to create the depth from 30 teams.
In the 21-teams league, it's easier to protect their players because there were no depth in they protected 16 skaters and 2 goaltenders. Also it was more challenging when there were 2 teams coming in the same time, creating poor depth as it thinned out. There were disposal draft for Minnesota and San Jose and Minnesota North Stars were a part of expansion draft as an agreement with the NHL by a owner who seek to buy the team and move from North Stars to the Bay area. The NHL wanted Minnesota to stay in the state and they had found a new owner as an agreement but unfortunately, they bolted to Dallas after a few season.
The following season, two expansion teams, Ottawa and Tampa Bay had to take turns and the other teams were able to protect 14 skaters and 2 goalies with a requirement to make available for the draft from every team with at least one NHL game in the 1991-92 season to expose a goalie. It is hard to create a depth as the talent availability in the expansion draft has thinned out. In most case, the NHL teams were able to protect their 9 skaters and 5 D or variables were made to protect their assets, in other word, most NHL teams exposed 4th liner and bottom 6 pairing. That's a way to thin out the talents.
In other word, if the league made it easier for the expansion team to have a potential top line with some steals from a team with rich in depth in term of talents and win the Stanley Cup, I would bet you that there will be grumbling around the league about this decision. So I would advise the teams right to protect their top 9 and top 4 D and two goalie with a clause that a team must make goalie available with at least a NHL game in that season. This is only fair if they are able to protect their assets. I do not want an expansion to win a Stanley Cup in their first year in existence.
I have another idea, I would prefer to have this rule, rather than exposing a specific number of players, teams may protect up to 45 million dollars in assets or 2/3 if the roster payroll is less than 45 million signed for next season in their players and must expose the rest if they are above the cap excluding ELC and draft picks. That way, teams will have interesting decisions to make on how many players they wanted to protect and expose their 20 million in asset to the expansion draft. They must be on roster before the free agent period. Also RFA may be offered a contract without giving them compensation from the expansion team, if they choose to sign RFA, they can't pick their player in the expansion draft.