Since they are in a pot they should be easy to find when you want to move them (unlike when they are in a big patch of ground). I would not worry about losing them due to overcrowding between now and fall. And I think you'd be fine moving them once they start going dormant in late spring if you'd prefer.

I would gently separate and move them now to wherever you have planned for them. They will be fine....very hardy...hard to kill.

I would reinforce what shadeyplace said about gently separating the seedlings. I have moved quite a few from our woods to the garden and I find the stems break off easily, so I always try to take them with soil around the roots. Good luck!

I dig a hole not too near the plants (perhaps 8" away", but deep. Then I reach in with my hands and feel for the little corms. Once I know where and how deep they are, I can loosen the soil under them and move them out.