Just come back to Orlando and be done with it Seriously though, it depends on so many things and personal preferences. I love this area with young kids and I don't see myself moving anytime soon.
That is one of the reasons I did not want to live in North Orlando but it depends on where you work and your work hours. If you're part of the rush hour crowd, then stay far away from the I4. I live in an area where I hardly ever need to get on the I4 and it's great.
Yes, I4 Ultimate is the project to widen the road and I hope it will resolve a lot of the issues with congestion but I have my reservations http://i4ultimate.com/project-info/