The Daily Mail states:

"A deal is yet to be fully agreed but discussions are ongoing."

It's not a done deal yet. While the odds have switched dramatically in favour of the MLS nothing has yet been officially confirmed. While Bale is now more likely to go to the USA nothing I have read confirms that is the case. Don't be fooled by Dalman wishing Bale all the best. If a journalist phones him up and states Bale is joining an MLS side what else could he say other than be magnanimous in apparent defeat.