but if i stay at build 4 at the moment, can i expect an update where i did not have to relocate my stats, perhaps in build 5 ? or will this never be happend ?
It is unlikely; the conversion process from the old HUD layout file to the new HUD layout file in order to have profiles working properly required that section be modified. You will only need to relocate your stats once and then they should be fine thereafter. We do apologize for the inconvenience.
Old UB support I'm not sure about, I believe Prima/Microgaming is likely going to be in the next Beta, but I can't confirm it for certain. If it's not in Beta 26 I'd expect it to be in Beta 27 though for certain.
Do we have to wait for the next beta for pacific Table Tracking? I had the impression that it was an issue with Table Tracking server, not with the development of PT?
You shouldn't need to; as soon as the servers are set up and functioning a search will return results. I don't know when that will be completed; it's possible it already got done and I didn't hear about it, in fact.