And now that we know how "old" Groot was during his post-credits scene, I have to wonder if we'll be able to see more forms of Groot before the fully grown adult version presumably debuts in Avengers: Infinity War. Just a few weeks ago, Vin Diesel revealed that the Groot we met in the first Guardians film was college aged, leaving open the possibility of more Groots in the future. I'm personally hoping that the Russo Brothers and company give us some montage of Groot growing up, before the Guardians finally crossover with the Avengers. Fingers crossed.