If they'll really have, they'll try to devise something that make both devs and users happier with the deal, but they'll also keep on offering everything they can to gamers that shiver just thinking about gaming as a service.
As long as MS sells its products as a service, it's just a matter between MS and its users, but this thing could become dangerous: once many users have become addicted, they won't notice if the deal becomes nastier, but 3rd party devs and publishers most surely will, some could be badly hurt, and unable to do anything, while the biggest publishers could ask MS for their share to grow, at the expense of smaller ones.