I don't re-pot temperate deciduous material at this time of year, I feel it is inappropriate in my climate. I don't think removing the leaves is necessary at this time of year, the weather is cooling down, they cant have too many leaves yet and they will be gone soon enough anyway.
My feeling is that you should leave well enough alone for the remainder of the season. Protect the pots well and prepare for next spring. Either that or set them out in your landscape to allow for some growing time. Seedlings are slow to thicken in pots.