I have Crohn's Colitis and have had a permanent ileostomy for only 6-months. I get the impression by the comments I have read here, and on other support group boards, that liquidy is actually pretty normal with an ileostomy.
However, mine is hardly ever liquidy/watery. My output is normally the consistency of applesauce, sometimes thicker almost like brownie batter. I think I like mine the way it is, other than the times I have had "pancaking'' which lead to leaks and ultimately lead me to using convex wafers.