I don't find that article particularly well-researched. If we go by revenue, Accor is the fourth-largest chain in the industry. (The three largest chains by revenue are Marriott, Hilton, and Wyndham--in that order.)

Marriott can't take over Accor, they cannot stomach the integration of Accor at this point (they're still working heavily on Starwood which was much smaller than Accor.) Wyndham and Accor is not a good fit. For Hilton, the integration of Accor would be a much bigger challenge than Starwood was for Marriott: There's more difference in corporate cultures and, once again, Accor is bigger and more complex than Starwood.

I could see something like Accor and IHG or Accor and some smaller player going together. But that would likely be a merger. Or, it would be Accor doing the acquisition as opposed to being the target.