Hypersmurf
Moderatarrrrh...
An antimagic field may only be supressing an effect but for all intents and purposes the effect is ended. Can you still fly? No. Therefore the float gently down part of the spell would kick in.
Let's say I have a variation of the Expeditious Retreat spell that lets me move at double my speed, but once the spell ends, I take 1d6 points of subdual damage.
Halfway through the duration of the spell, someone casts Hold Person on me.
Can I still move at double my speed? No. But that doesn't mean the spell is ended, and it doesn't mean I take the damage.
Until the duration expires or the spell is dispelled, the "at the conclusion of the spell" effects don't take effect, even if the spell is temporarily suppressed.
-Hyp.