Yes. In their current designs, they are all Kickstarter exclusive.
By this we mean that we will not be releasing any of these higher-end upgrades in a retail setting. It's just not practical. We may (may!) offer something similar as a limited upgrade in any future editions of the game, or as prize support at one of the conventions we attend, but we would never offer the exact same design/colors/size/etc. What you get here will remain unique to this campaign. And for something like the JESTER tile, that will be retired and never used again, anywhere, by us.
You may see some "web-exclusive" materials show up on this or other Catalyst campaigns. Or "event exclusives." Web-exlcusives are items we will only offer online through Kickstarter, our own website, or maybe a major supporting channel like boardgamegeek, for instance. Event-exclusives would also cover conventions and tournament play, things of that nature. Just FYI.