Such great news... but you've covered that already. Some potential dominoes?
* Arguably this makes it a little easier to trade Devers. Not that the Sox need to or should want to, and future defensive positions are TBD, but if Cherington believes they need a left-handed ace STAT, such a deal involving Devers just got a little easier. Maybe Cecchini too?
* People are likening this to a #1(ish) draft pick. The Sox own the #7 pick, and the one direction they definitely do NOT have to go in is near-ML-ready talent on the infield. Ball's development might make them a little nervous about another high school arm here, though by June the trend lines could all be very strong. Anyway, seems like a no-brainer for the Sox to pick a pitcher if there's one deserving of a #7 spot on the board.
* Given Moncada's age, I would think the Sox would feel like they can keep him down for a while, at least 2 years if need be, maybe even into 2017. Granted he may hit his way to Boston, but by 2017 you'd have to think Ortiz is done, Napoli maybe let go (sniff), certainly Victorino gone, Craig either fixed or long gone, Panda moved over, Hanley nursing injuries, and the other pieces falling into place. Point is, it's not like he's 22 and knocking on the door, forcing near-term decisions at the ML roster level.
That's all I can think of. Well, that and the Yankees being in complete disgrace.