Board Thread:New on Ben 10 Wiki/@comment-7015697-20130308162336/@comment-4776155-20130314072124

My theory:
 * Enoch, Hex and Animo made cameos in Secret Saturdays which increases the chances for it to be the crossover with that show. Secondly, the description of the episode is "unknown creatures attack Bellwood. Maybe the "Unknown creatures" are cryptids from the Secret Saturdays.

So yeah, we can expect a crossover between Ben 10 and Secret Saturdays.