By typing words into Twitter
While true, to assume they own the rights but aren't saying so is very odd.
Where is this idea that companies secretly own rights like that? They may have some sort of first dib option, they may not.. they may outright own it.. but I don't see any big reason for them to have a multi-game deal they are hiding. The words they choose are fairly careful, but they seem to spell out a message to me: Respawn has a choice. They most definitely own the IP, and made confident statements about how the MS exclusive deal is only for the first game. They also stated they wanted to make PS4 games.. they posted a frowny face when saying that they were only recently told that EA had changed the deal from timed to outright exclusive with MS.
Beyond that it's most carefully worded "happy to be partnering" stuff.. Respawn seems pretty cool on that aspect and I respect them, but I dunno.. call me crazy.. read between the lines.. they seem to be hinting they want the game to be multi-platform.. they outright stated that the initial deal EA made was for timed, etc. And in turn also seemed to be hinting that they control future prospects... without outright saying it because the messaging right now is for Titanfall and MS is their major partner, and it would be not very kosher for them to start outright discussing future potential multi-plat games, might even be contractually obligated to only make vague statements even when it comes to their deal with EA moving forward.
Why are you repeating what I just said?