The guitar appears to be an S5470, one of Ibanez’s more recent additions to the S/Sabre family. Click here for more info about this model on Ibanez.com.
On the Megadeth forum (registration required), Chris says:
I will hopefully have a new Ibanez guitar to play by the start of the U.S tour, but I thought I would give you guys a sneak peak before it’s even finished. It still needs a clear coat but the artwork was all hand painted and came out great. Let me know what you guys think
Take care, Chris.
GUITAR CENTER LINKS:
Ibanez S5470 Electric Guitar Transparent Black Sunburst
Ibanez S5470 Electric Guitar Red Viking
Ibanez S5470 Electric Guitar Sapphire Blue
Ibanez S5470 Electric Guitar Red Optimus 889406826083