Yep.
Either Machino gets all of them (either here in the Real World, or she goes back to Celestia with them and they all Polycule it up in fantasy land), or they all part ways and the Five return to Celestia, after helping Machino figure herself out and what love and connection actually mean for her.
I think either option would work well, and could lead to a lovely ending full of feelings. If she truly has to pick one of the Five, though, is the sort of ending that seems the most dissatisfying.They're each just so great and their characters and stories so fleshed out compared to one another, that it really feels like an "all, or nothing" sort of climax.
But, I look forward to finding out what happens.
Thanks for the TL.