There a couple of ideas being discussed in the Closed beta/Enhancements thread about the new Sorcerer's PrE. The first one is the Battlemage and the second one is a charm based PrE.
IMHO, giving Sorcerers a prestige like Battlemage will result in very few people taking it. That is because noone will ever prefer a Battlemage to a pure melee or a pure caster oriented build.
A charm based PrE would just be hated by the entire party. Try to bring it in Prison of Planes-like quests and you will make everyone mad.
These are my personal opinions about these 2 kind of PrEs.
That's why, what Sorcerers' need is a more defensive focused PrE but with some offensive that coupled with the Sorcerers spells will make a decent build. That's why I decided to give this suggestion its own thread: TO DISCUSS ONLY ABOUT THIS PRE AND MY SUGGESTION, to brainstorm, feedback and maybe to come up with something that Devs may consider.
This is a copy-past from the above mentioned thread:
The trees with the new system could be arranged with something like this:
T1: Immunity to poison, +2 con,
T2: +1 MCL/CL
T3: Immunity to disease, +2 con,
T4: +1 MCL/CL
T5: DEMON SKIN TOGGLE: Immunity to blindness, +2 con, +1 MCL/CL, +25 Fire Spell power, 25 DR/-
Demonic rays Spell SLA
Fire resistance, 3 rank, 2 AP each: 10/20/30 Fire resistance
Elemental Resistance, 3 rank, 1 AP each: 2/4/6 Cold, Electric, Acid, Sonic Resistance
Spell Crit chance I: +2% to Fire spells
Electrocution for Fire spells.
Pierce Dragon Resistance (Pre Req Elemental Resistance) 3 ranks, 2 AP each: You bypass 5/15/25 Fire resistance
Spell crit chance II: +2% to Fire Spells
Spell pen 3 ranks, 1 ap each: +1/2/3 Spell pen
Spell crit chance III: +2% to Fire Spells
Demonic Roar SLA: DC 15 + Half Character level + Cha mod + Fear based effect enhancements (like the one in the Draconic Incarnation)
Dodge I: +2% dodge
Spell Crit chance: +2% to Fire spells
Demonic Fireball SLA
Dodge II: +2% dodge
Fearless demon, 2 ranks, 2 AP each: +1/+2 DC to Fear based Spells (our T5 SLA)
Run out of time, might add something more later. Tell me what you think about this, I actually like it (crazy, right?)