Congrats to he: on 10000, ar:, ast:, and sk: on 1000!
Those Wikipedias which seem dangerously close to a milestone are (please add to this list if I've left any out):
almost 1000: lt:, ku:, lb:
almost 10000: bg:, ca:, fi:, no:, ro:, sl:, uk:
A word of encouragement to all of them, and here's hoping many other Wikipedias reach milestones soon!
Of course, we shouldn't forget that quality is more important than quanity...