I don't understand how they didn't announce literally any products. The Pro Tour literally exists as promotional material.
It's super weird since they had a streak of like four consecutive ones where they did a product announcement and it seemed like they'd (wisely) adopted that as their strategy, but then like two of the last four haven't had anything.
I do think there's a couple issues here. One being that they don't want to announce the SoI expansion name until SoI is out because Nahiri's Sexy Slash Explosion or whatever is kind of a spoiler. The other being that they made a (bad) choice to never announce or describe anything but the very next product coming out, because they seem to believe having two things announced causes brand confusion, but it means now they can't actually give any of their supplemental products enough room to breathe. (Witness the complete lack of hype for Commander 2015.)
I mean, Maro basically admitted a summer supplemental set was coming, so I don't know when or how they plan to reveal that...
It'll probably be the small set announced at PT SOI and then the summer set announced at PT small-set, I guess? Or else they'll announce the supplemental set at PAX East like they did with Conspiracy.
There's also a problem where this is their first year doing two blocks and they clearly have no idea how their marketing plan should work for that, given that BFZ got an enormous blowout while SOI is going to limp in with basically no promo at all.