I can understand the "one kit" limitation.
But will it ever be possible in a future patch, if there ever is one, to apply a kit to the SECOND class of a dual-class character, if the first one is a plain class? Or to apply a kit to one class of a multi-classed character? Gnomish illusionists already exist, but I'd love to dual Imoen to Specialist Mage rather than General Mage - as in original BG1 where she could go to Conjurer (or other specialist mage if it required a 16 in Con or Dex as well as her Intelligence.) Or possibly even dual her to Wild Mage.
Or perhaps imagine a Cleric/Assassin - a true priest of Bhaal (or Cyric, who supplanted him). I'm thinking Tiax would be a good one for this! Or Sarevok in TOB, thanks to his high stats, being able to dual to Assassin or Necromancer or something...
Any other combinations that might be interesting - or, by contrast, any that might be overpowered? Would a Cleric / Wild Mage set off wild surges even with cleric spells, or be able to use Nahal's Reckless Dweomer to cast a cleric spell instead of a mage spell? (Probably not in both cases, divinity is more predictable than arcanity.)