I have played the game since EA started. One of things I plan on doing is recreate my character and companions in D&D Beyond (DNDB) so I can manage them better and have character sheets on my side monitor. What I would like to suggest to Larian is to partner with DNDB via Wizards. DNDB is a Wizards Partner. Larian could even generate a source book that people could purchase on DNDB.
It would be great if we could import the characters to DNDB and track them there and see more possible options for our characters before leveling them up in game.
They are, unfortunately, so far off the reservation from the 5e ruleset that it would be absolutely impossible it integrate with any system that actually used it.