Well, we are in a pretty weird economic situation right now, and it's not just the prices of the GPUs themselves that wen't up, but also steel prices went significantly up since the pandemic started.
It's interesting to see that in the meantime for example indiegogo started allowing use of our own currency (PLN) while we couldn't use Euro for both campaigns and we were forced to use USD, and I'd guess that there's a reason for that. Consider gathering money for a project to see three months later when you get the money that supplies/raw materials go up threefold over this time and you either have to say to the backers that you can't start production and need to wait or you have to return the money, but you still pay the platform fees.
We don't plan to make another campaign as of right now, and we'd rather sell the cases from stock in the future, but still the situation is complicated.
As for the timeline - for next version - it's also hard simply because while me and Zombi can take some of our time to make improvements to the design in the same manner as we had with first and second version of the case, we want to make proper tooling to make crucial elements fully repeatable to eventually reduce the amount of QA required. And for that we need people who have experience with this, and they are occupied with bigger projects.
A side news is that I got into 3d printing recently to learn the technology a bit, and while obviously we're not planning to make 3d printed cases, this is something that potentially could let us prototype some parts that would be made with injection mould at some point like funnels, some mounting brackets etc. Since we got to a point that we have a most optimal cooler like NH-L9 (unless we get better prepared for Cryorig's C7) we could start thinking about optimising airflow around it, at some point in the future, assuming a streamlined configuration with this specific cooler. But it would also bring up the costs a bit, at least initially.