That's great to hear that those are already in. I would hope that more would be tweaked with elemental side-effects though because a lot of the starting skills in particular are very lackluster in comparison to the Mage's abilities.
Having elemental weapons interact with background elements would be very interesting as well although it'd probably be a huge headache to balance I would think

The way the elements interact with each other is such an interesting and unique system that I rarely see in other RPGs and I hope that Larian takes advantage of how cool it is and just doesn't horde it all for one single class.