Dead Imoen?

So, its pretty common knowledge that Bioware originally planned for Imoen to die in Spellhold, but reversed the decision because she was so popular with players. As much as I lover her as an npc, I'm wondering how that event might have changed the tone of the rest of the game. How would her death affect charname, or any returning npcs from BG1? Does anyone know if any mods exist that kill Imoen in Spellhold?