i'm currently working on the haxe plugin for sublime text. Haxe is statically types, so you have a decent amount of information (signature of functions, overloads, full qualified types including packages) for completion. The problem is that it's currently impossible to include a useful amount this this stuff inside of the auto completion panel.
This is really an annoying issue (i think for all statically typed languages) and was already mentioned a few times:
http://sublimetext.userecho.com/topic/8 ... -be-wider/
are there any plans for st3 (which looks great ) to improve this (shouldn't be too difficult but would improve the user experience a lot) ???