Won't every team play each other twice? (8 other teams X 2 = 16). That's only 2 extra games against the West instead of against the East. Hardly a huge difference IMHO.
That hasn't been the way they've done it in the past. Ottawa, for example, played the West in a home and home series, 2x5 for 10 games.
Then they would play 2 Eastern teams 3 times for a total of 16, with the final 2 games with the remaining team.
They would then rotate this pattern every year.
The Western teams would play a similar rotation. (2x4 East, 2x2 W, and 2x3W)
I haven't heard whether there will be a change in this format.
They have always tried to maintain the rivalries in the East and in the West.
As worst in the east we will get Edmonton 3 times, one other western team 3 times and everyone else twice.