I can't really agree with the OP, as I also found the Update 6 stream pretty lackluster. It's nice we'll get the rest of the missing themes, but everything else they talked about, we already knew. Don't get me wrong, I'm really looking forward to the gift shops and on ride photos will be cool if they do it right. But there was nothing to get me really excited and no new surprises. I also believe we may be coming to the end of the free updates and on with the DLC, not that that's a bad thing. I'm very curious to see what the DLCs will be. I'm hoping they're not just the PC1 DLCs ported over to this game. I'd not be too happy to have to repay for them all, unless they are greatly enhanced with new content.
As far as more free updates, the only thing I see missing is the hotels. But to do that right, they could very well make that a DLC, packed with lots of cool features. Or they could do it as badly as they did it in PC, and just make it free.