Cross progression/cross save?

It makes most sense for those who may want to add the upcoming Switch version to their libraries.  I mean, I didn't start playing on PS4 until about five months after the game launched.  I missed any cosmetics exclusive to Season 1 and its collection event, but that was on me for not choosing to try the game earlier.  People who start out on the Switch, or who choose to get the Switch version as a portable alternate, presumably won't have any way of getting the cosmetics from the first five (or even six) seasons and any of the mid-season events.  How else can you catch the Switch version up to the others if you don't allow players to connect and sync accounts between platforms?

As for cross-play, I think it's a good idea, but I hope there are options for All Platforms or Console-Only, plus an option to turn it off.  I'm always a bit worried about PC players, with their mouse and keyboard controls, playing against console players who use controllers, in terms of aiming accuracy.  Also, I don't know how the cheating situation is on PC, but that would be a nasty thing to introduce to the console players, too.  I figure it'd be best to allow people to choose if they only want to play against fellow console players, or if they're confident enough to take on all comers.