I know on the early entry usually it's FAntasyland and Space mountain. Do they happen to open up Nemo during early entry or do we still have to wait for that?

Yes, Nemo is open for early entry. We went straight there one morning and were able to ride in about 30 minutes. Still a wait but better than normal.

Finding Nemo NORMALLY opens with Early Entry/Magic Mornings, but can be held back, especially in the Peak Summer Hours, as they need time to do daily maintenance on the subs.

Also, if it opens for Early Entry, usually it is not running all the Subs, as only some of them have been approved for the day, while others are getting the last checks made on them.