If you look at the current southeast division they are some of the lowest payroll teams in the league or teams on a budget. Florida is now going to have to compete with Montreal, Toronto, Detroit, Boston and Buffalo, five teams who can spend as much as they want, when they want. That is why the southeast likes staying together, because no one is spending crazy amounts of money.
Yes, those games should get more fans to them, but it doesn't change to much when you think about it in cap terms. It is going to take a couple of seasons for Florida to feel confident enough that they can spend up to the cap without being in trouble. Tampa is the same way, though they have a few big contracts on their team that helps drive their cap space up.
Conference 1 on the other hand, its biggest money maker is New York, and then after that it drops to like Pittsburgh or Philadelphia. Not a lot of sway in terms of cap in that division at all. All the teams except the Islanders who are use to being on a budget, will spend up to the cap and whatever.
It does put teams like Florida at a disadvantage because when a player in free agency is looking at the team and the division they are now in, they know Florida is going to have a hard time competing against teams who can spend a bunch of money. In the old 3 division system, they only had to beat out teams who also had low cap hits, now they have to go against the biggest hockey markets in the league for three playoff spots, and 9 other teams for 2 wild cards.