Big Bang After Effects: HP/MP recalc?

Simple enough question I supposed. I am working on something, and I'd like to get it started now. Let's just say, I keep talking about my plans, but I have a tendency to ignore things when I think them through too much, and know they will work out how I want, should I follow through, and end up deciding not to do it. Um... silly I know, but I would just like to know if HP/MP will be recalculated after Big Bang, for existing characters.

The plans involve a BM, I know things don't change too much for them HP/MP wise, the question is still very necessary.

I believe there is a new hp growth for classes, but existing character base HP is not affected in anyway. Although some classes have skills that raise their base HP 10-20%, iirc this includes Buccaneers, Warriors, Archers, and Thieves.

Code:

signed int __cdecl IncHPVal(__int32 a1)
{
  __int32 v1; // eax@1
  signed int v3; // [sp-4h] [bp-8h]@7

  v1 = a1 % 1000 / 100;
  if ( !v1 ) //Beginner
    return 8;
  if ( v1 == 1 ) //Warrior
    return 20;
  if ( v1 == 2 ) //Mage
  {
    if ( a1 / 100 != 32 ) //If not a battlemage
    {
      if ( a1 / 100 != 22 && a1 != 2001 ) //If not an Evan
        v3 = 6;
      else  //If you're an Evan
        v3 = 12;
      return v3;
    }
    return 20; //Battlemage
  }
  if ( v1 <= 2 ) //All other beginner classes
    return 0;
  if ( v1 <= 4 ) //Thieves and Bowmen
    return 16;
  if ( v1 != 5 ) //Anything else not yet covered
    return 0;
  return 18; //Pirates
}

Is this it? At least, it's minimum, I believe. Either this isn't what I think it is, or Warrior looks quite depressing.

Kalovale, that wasn't exactly what i was looking for this time around. I think the second post answered just fine though, so no automatic recalc after BB? Kinda annoying, but I think I can work with it. Ty.