Yeah, I'm not sold on the market. It's tried to sell itself as the hot relocation market for the past couple decades, but hasn't paid off. But we'll see what kind of a push they're able to put together.
I don't either. I suspect that Adidas will just keep bringing out a variety of templates each year, mixing them up. This year's template, it was side stripes. Next year, shoulder boards. After that, the new templates might go back to the down-the-sleeve variety, or they might do something crazy like three stripes down the front, PSG-style. But I don't see any reason to believe that they're on a rotating schedule.
As for the league-wide contract, it would be crazy for MLS not to take bids. Their product has become so much more valuable (and visible) in the past few years that the new deal ought to blow away the old. I would absolutely expect Nike, Under Armour and Puma to make competitive bids, as I would expect Adidas to do whatever it could to hang on to the contract. All of which is to say that I don't expect an announcement until late next year.