After Monday's game against Montreal, the Panthers, Lightning, and Leafs will have all played 49 games. Let's assume that Toronto wins which would make the standings:
Florida 73
Tampa Bay 70
Toronto 69
Looks a bit too close to definitively call Florida the division winner.
All three teams will have 33 games left.
Toronto has 3 games left against Florida and 2 games against Tampa Bay.
Tampa Bay has 1 game left against Florida and 2 games left against Toronto.
Florida has 3 games left against Toronto and 1 game against Tampa Bay.
I think it is well within the realm of possibility for Toronto and/or Tampa Bay to catch Florida.
EDIT: Updated post to show 2 games between Tampa Bay and Toronto not 1 as the post originally (and incorrectly) claimed.