It's really obvious since day one when the Bungie deal was announced that they would remain independent, even on Jim Ryan's PS Blog article. And if a game is "exclusive to PS and PC" then it ISN'T exclusive. Same way Bethesda games won't be exclusive to Xbox, since they will also release on PC. Exclusive to consoles will happen less and less.
This is literally and i will quote, their headline on PS Blog:
First line of the article:
Second paragraph:
Jim said and repeated it 3 or 4 times during the article that they will be a multi-platform publisher after the acquisition. There's no grey area here. There's no "their games will remain in more platforms
for years to come" bullshit where you can interpret whoever you want.
Pete Parsons, CEO from the same article:
Same person, later on:
PS Blog
It's really clear they will release these games in more platforms than just Playstation consoles.