Yeah that's what I heard too, but the team that makes X9 is different from the Team that makes battle network and Starforce, the team that makes those games are the ones that made Megaman Legends. (One of my favorite games I have to say.)
Nope, they haven't ended it, it didn't say "The End" in it they that's how capcom ends their Megaman Series, since they didn't say then end it hasn't ended yet and Plus Capcom left a big element for the 4th and that element is Duo from MMBN 4 who said he would return to earth in about a century. XD
Played them already XD, Oh and it's the other way around Battle Network came out before Starforce because Starforce is set in the same universe as Battle Network Just a that Starforce is 100 years in the future of Battle Network. You know this because if you have any MMBN games in the cartridge of your DS while playing starforce you will find Lan Hikari's journals and stuff on the events after MMBN 6.