On zone count, wouldn't it be better to have quality over quantity? WoW may have 50+ zones, but each zone is relatively small(and tiny compared to SWG planets) and compact. I'd rather have fewer zones with more space. Remember how unpopular Kashyyyk was at first in SWG for being small and compact for quest focus? It wasn't as fun, so ended up getting the open Mustafar in the next expansion. Big planets will allow for more fun all around. Coruscant surely won't be that small, especially with 5 levels. It won't be huge like a real planet, but I figure we'll at least get WoW-sized levels.
"Sir,we are beginning our search for these rumored 'underwater villages'.They will not stay hidden for long". -Battle Droid Commander OOM-9!