Unfortunately, I suspect that it would wind up increasing AE use, because of its ability to sidestep the 'effort' of leveling. Create a character with whatever the current 'meta' is for farming, pump it to 50 via AE. Now respec it to save out the enhancements, then take the inf that you built up farming to 50, buy a reroll token, and use it to create a character with an AT/powersets that don't lend themselves to quick leveling -- i.e., controllers/defenders. It basically allows you to use an easily-leveled build to sub for the work of leveling one that's harder to get to 50. And I'll take it as read that this isn't how you intended it to be used, but like AE itself, as soon as you hand an 'easy button' to players, it's going to get used that way, no matter how little you intended it.
That's correct. I see now the cons had much larger holes in the over all plan and idea than I had thought. You're right though the more I think on it the more I can see it having a complete reverse effect.