I see on the Bundle pages COTOs showing for the cost. Can we now or soon buy bundles and upgrades using COTOs?
I believe this was answered in the Release 51 Postmortem Missed Questions post, but their plan is to make Bundles available through the Obsidian Merchants... No ETA on implementation. It was:
I've heard that they're thinking about it, but it hasn't happened yet. So for now the answer is "no".
They specifically said it probably wont allow upgrades via cotos. Youd have to buy a brand new bundle with the cotos.