BotCon have updated their Twitter account to remind people that the first Shattered Glass Heroic Decepticon will be revealved today.  Most people are expecting it to be Soundwave, the white Classics Ironhide mold, though I'm wondering if they will through a curve ball and go for Treadshot?  Probably not, as Sounwave's mold is already known.

BotCon 2012 toys

1. SG Soundwave - White Classics Ironhide Mold - confirmed
2. SG Ultra Magus - Diaclone coloured "Movie Preview" - Universe Laser Prime mold (mold confirmed)
3. SG Treadshot - ? Classics Megatron mold ?
4. SG Tracks - Red Universe Tracks mold
5. Gigatron "Overlord" - Reveal the Shield Bludgeon mold
6. Metal Hawk - ? Universe Thunderwing mold ?

Some other possibly toys, for the loose set and customising classes, are

1. Slicer (or Shattered Glass Wheeljack) - Blue Universe Tracks mold (as one of the BotCon recolours)
2. Re-use of Reveal the Shield Seapray mold ?
3. Use of Dreadwind / Mindwipe mold
4. What will be the Army builder set