Hey I love X, but he get's too much love in my opinion
Also, if you're referring to Mega Man Unlimited, that was a fan-made game. If Capcom's thinking about making an eleventh addition, they haven't announced it yet.
Yeah, I personally really liked those. Rather than just plopping characters into other games, I wish they would do more originals, like a real MM11 and a new X-to-X3-styled game :D