No recognition, after all...Well, Ken can't say that's surprising.

"I suppose."

How to go about this, though? It's a rather unusual circumstance. Though, Ken has an excellent memory for detail when not in a haze of plotholes and evil. So, if he recalls correctly -

"You're...Takato-kun, aren't you?"

Wormmon hops out of Ken-chan's arms and wiggles over to Guilmon. Now that he knows Guilmon is a safe friend, they can play together!