Sven did an interview like a month ago and said they had zero intentions at this time of making the game real time with pause dispite that it may upset some people it was not in the plans to do so currently.
Whilst I prefer RTwP, this statement makes sense. Their whole combat AI, which is so influencial on many game design features, does not support it. Instead of having a new RTwP made specifically for this game, I would rather have a TB that really reflects a tabletop experience and this is where Larian has so far failed to deliver. However there are changes that have been implemented in the patches released this year, thus indicating they acknowledge some issues. So let's hope they will improve the weird combat balance, to my mind a much bigger issue than the combat mode itself.