Doubt it. It will most likely make the problems withing XGS more evident and will be a bigger loss in the long run and CoD will fade into obscurity.
MS can't manage 20 studios, why would they be able to manage 40?
I have a similar theory: I think MGS, Zenimax and BK team management is a mess at least in some cases and areas for each case, and lost a good chunk of key talent that made at least some of they key IPs shine.
So they have the huge challenge of fixing the team management and a maybe easier one of hiring talent to replace the lost one. On top of that, they will have another issues related to the way bigger scale and acquisition: from the cost of mantain all this, to optimize the reduncancies of tasks/jobs now being done many times repeated in different places when they could be merged in a single smaller team getting the best individuals from each team (stuff like marketing, PR, QA, localization, tools, engines...), to coordinate the roadmap of many teams, to standarize and create a coordinated workflow and best practices, to establish proper and standard communication channels between the different teams, to do all this minimizing massive firings and without being too intrusive in the culture of each team...
Each one of these things is a very complex topic that needs a ton of work and is very difficult to implement it properly. I know Sony does this very well, and Ubisoft needed many years to achieve it but now is doing it pretty well since several years ago. But I have big doubts that MS could achieve it and I think will have big issues with these topics and that if they solve them, will take several years to properly integrate the huge amount of teams and companies they acquired in recent years.
In fact, I think that after acquiring ABK they should pause acquisitions and take at least a couple years to adress a game division wise reorganization and restructuring to put everything in order integrating everyone and set a standard company wide organization workflow and production, coordination and communication method without redundant teams or people.
Things like instead of having let's say 40 PR teams split into let's say 8 companies each one working in a different way and with a different strategy merge them into a single global team with a single strategy created with the best of each team plus different local subsidiaries -let's say 10 or 20- that coordinate and handle the PR of all the projects of the company. With maybe a third or a quarter of the people they may have now they'd do a way more efficient, productive and profitable work. It did wonders for Sony. And that could be applied to a ton of areas like marketing.
If not handled properly, which I assume is going to be the case, would result into a giant mess. Specially when contrasted with their direct competition who are doing it properly. Competition that also is investing more in talent who knows how to create and develop top new IP while MS are buying brands without many of the talent that made them great. Something that also think the MS acquisitions will patch temporally but will continue being an issue in the long term.
