I am planning to. The only thing I really have to wait for after it is released is the style. I am installing a better style on my site and hopefully that comes out shortly after XF 2.0 comes out. I know it could take a few months, but I don't want to wait 6 months to a year to upgrade. I mentioned this in the xenforo 2.0 thread on xenforo.com. I have noticed a lot of large forums moving to XenForo 1.5 recently. If I was the admin of a large forum, I would just wait for XenForo 2.0. I upgraded my site from phpbb to XenForo 1.5 in august because I didn't like spending time on my site when it was running phpbb. I like XF much better. I have kept add-ons to a minimum on my site. I have 3 add-ons installed. Are you planning to upgrade to XF 2.0?