1. Aurora and Henry through their dreams again.
This was already discussed in the chat, but I’m not convinced that with time passing at different rates in FTL and NL that they’ll be able to line up sleeping patterns in order to communicate in the burning room. I think they may try it, but it may not work. It’s still the most believable of all the ideas out there, assuming they want Neal to have a line of communication to NL at all, which they may not be planning.
2. Bae goes to his Rumbles new place in FL, gets the Crystal Ball uses the ball to see what is happening.
Neal has no idea that his father ended up living in a castle, or where that castle is, or that he had a crystal ball, (which I’d wager is in Gold’s shop in SB now, anyway.
3. Bae has always avoid his Dad, so he must have other means to jump around kind of like the Mad Hatter
I don’t think he did a lot of jumping around. I think that after NL, PP released him and sent him to our world at the right time so he’d be able to meet Emma, and he’s been here ever since.
4. Bae creates a curse too in or to send him to FL.
Neal has no idea how to create curses, nor would he want to.
5. Bae marks himself with the Mark that Aurora kept.
That wouldn’t get him back to his family, it would just get his soul sucked.
6. Bae may know where the Red Slippers are.
As Jefferson said in The Doctor, the slippers had already moved on, meaning Dorothy had already used them to leave Oz come home to our world.