MS tried last gen and they were more successful with it than they were with the Xbox one but the Xbox 360 was still far behind the PS3 in these areas even with the negativity the PS3 had at the time. I'm not saying that they shouldn't try doing it, I'm simply saying that I feel it isn't going to help... especially as the PS4 is far stronger than the PS3 was thanks to Sony learning from their mistakes.
Look, the reason MS even invested in these territories throughout '05 - 2010 was specifically so they could stem the tide of defacto exclusives Sony was getting as a result of being relevant in those regions. Sure, 360 was far behind PS3 in JP, but JP devs still saw the platform as worthwhile to release on for almost all of their endeavors last gen. Now that MS has regressed their support in that region, they have lost a large chunk of the 3rd party support they were getting on the 360, and Sony is now getting exclusives at almost no cost to them.
Its a matter of optics, and if MS isn't going to put in work to get JP devs to consider releasing on their machine, which is profitable in 2 western regions that they are relevant in, then this problem where devs just continue to focus on PC/Playstation/Nintendo is just going to continue to create questions around the topic of MS relevancy in the gaming sector outside of being an OS/API supplier.
I feel like MS still needs a high profile game to sell Scorpio. It makes their co-marketing decisions feel weird. Sony has Red Dead, Battlefront and Destiny. Two games that will most definitely be "better on Scorpio" but MS won't say a peep about those. I also don't think that the 3rd Halo and 5th Forza is going to move hardware no matter how good it looks in 4k, 60 FPS. Their biggest co-marketing deal right now is Shadow of War.
Crackdown better be BotW good.
Even if Crackdown 3 were BotW good, users will have 2 other platform options to play it (PC, X1 S) and potentially at higher fidelity (PC) than Scorpio. I don't think a 3rd party marketing deal will help move hardware any better than it would an X1 S - bundles are to get people into the ecosystem, and it just makes way more economic sense to put attractive bundles at the lowest cost, aka the base unit (X1 S). Just like the Pro, the Scorpio is going to need to sell itself, and MS already knows the vast majority of people who are going to buy into their platform even with the Scorpio on shelves are going to be purchasing X1 S.
I think the smartest move anyone that is looking at sales & the console industry can do is remove this notion from their line of thinking that the Scorpio is meant to drive X1 sales enough to turn the tide against Sony/PS4 in any way, cause that is not happening, and even MS has admitted they are not expecting it to happen.