For reference before people start resenting Tkachuk for "holding out" Gaudreau signed his last contract October 10th and this season doesn't start until October 3. So there is still 9 days to negotiate before any regular season time is missed, though like I mentioned the last 3 days of camp is a team building trip and no on ice stuff.
If I were to guess I think we can all assume he'll get no pre-season games in, but hoping he signs within the next week here. There's tons of contracts they can look at, Aho's 5 years, Point and Boeser's bridge deals, Keller's $7.1 over 8 years. Still holding out that we can get Tkachuk for 8.5x8. 3 year bridge would be horrible for the Flames, Tkachuk's cap hit will only go up at the end of the bridge, but more importantly Gaudreau is a UFA and he'll need to be paid at least $10-11 mil. I can't see Tre or the Flames wanting Tkachuk and Gaudreau both up at the same time.