Well, actually pretty much every popular games have been bought at one point. Even in case of a first party studio that create a new IP, ideas are sold to a publisher which accept or not to fund the game. the difference is that a first party studio could only sold their ideas to their owner which will also automaticaly become the owner of the IP.
In fact, in the video game industry, you have so little to give credit to if not money.

I dont understand what difference it makes. Sony brought out Naughty Dog in 2001 a studio that wasnt formed under SCE. Does that mean we cant give Sony credit for NDs master pieces? MS funded and helped release Halo and they are supporting Rare when Nintendo let them go. For the record, i am a huge fan of Rare however the new KI blows the old KI games out the water and it wasnt produced by Rare and it is a MS game. Studios are just brand names. You probably should give credit to where its due, MS are helping revive these great franchises and i am glad there under MS because they have the money to do so. Iv seen studios die and forgotten but atleast MS are doing there best.

Nintendo are really the only ones that make there own master peices, Sony and MS rely heavly on 3rd party options or studios they have brought out long ago. 

Age Of Empires was a major hit and thats a MS game, and look what happen to Bungie now since they left MS, cant say they took a forward step. Also Forza is a major hit for MS and Turn 10 was formed under MS and was not a 3rd party brand to begin with. Either way as a gamer does this debate really matter? Who honestly cares who created the game or where it comes from, aslong as its good thats all i care about. MS have done some great thigns to this industry and Halo is one of them regardless if they were behind it from day one or not. Its there money and by logic if you invest in something its technically yours.

Freelancer... got SO immersed in that game, was magical when I was younger.

Rare needs to make a brand spankin' new GOTY caliber Banjo-Kazooie. I'm talking 95+ on Metacritic. They should heavily market the game to diversify the XB1 lineup, and that should quiet the naysayers.

I feel like MS doesn't think platformers are system sellers. They made Nuts and Bolts and it didn't sell well. More importantly, all the great talent at Rare is gone. 

Everytime you say that my brain does a 180 flip summersault.

Rare was a secretive team. And some of their guys bounce back and fourth from the team.

Most famous guys like Chris Seavor and Gregg Mayles (DK, Banjo, Sea of Thieves).

Also talent is not a finite commodity in the video game industry.

Actually, I've only started saying it recently cause it's true.

Most of their employees went to Crytek I think 

Great talent is what makes a game developer good. 

I would love for the Panzer series to continue its journeys on XBox. Crimson dragon hasn't been to successful and it is nowhere near the quality of the Panzer games. Also, Sudeki and Jade Empire would be welcoming returns :).

If the OP doesn't mind, I will just add these to the list. Here are my suggestions;

Panzer Dragoon Orta 2

Otogi game

Blue Dragon sequel

Mech Assault 3

Magna Carta 3

Jade Empire Sequel

As stated in the OP, a Sudeki game is really needed

Infinite Discovery 2

The Last Remnant 2

Age of Empires


There are other ones that are missing I am sure that are great, but these games come to mind.