"Oh, finally, I was introduced to Capcom’s Kawano-san today, who was also the maker of Rockman DASH. But when I told him the wish to “make a sequel to DASH” from a certain person, he gave me some sort of grin… If it’s good it’s good I suppose… Goodnight.”
..and then, in a followup Tweet:
"If you're Dash fan, you'll be happy soon."
and another, in response to the tweet, "Don't toy with our hearts like that Kamiya-san!":
"...you gotta believe Kawano san!"
Sounds to me like Capcom is working on something Legends related with Yoshinori Kawano (director of MML1&2, Tron Bonne) being involved. Kamiya, though no longer associated with Capcom, was likely made aware of it from his meeting with Kawano -- thus ensuing the "If you're [a] Dash fan, you'll be happy soon" tweet. Of course, this is all so ambiguous it could turn out to be anything...or nothing. Nevertheless, couldn't hurt to speculate.
UPDATE 2: Here's two more tweets of interest to keep you on edge. The first tweet is in response to "Kamiya-san Why must you toy with our emotions? We NEED Dash 3", to which Kamiya said:
and the second, a response to "No Dash 3 at all, huh?""All I can tell is just wait!"
"Just wait and see."
...This man knows something.
Thanks to Jeff of MegaManX9 for the tip and GarboSan for the translation.