Is Finnair planning to return the winter service from Helsinki to Florida. If so, where to (Miami?). Also, will it be direct on the MD11, or on the 752 again thru Halifax? I'd love to know the details asap, we need to look at that...

No, Finnair has no plans to return MIA or FLL.

Nearest points to see AY 752's from FL are Cuba and Dominican Rebublic where they fly via Halifax at this forthcoming winter.
All MD-11's are working mostly with Asia and also on route to JFK.