Through the magic of international auction website eBay some information has come to light regarding the 2010 San Diego Comic-con exclusives. There has been no official confirmation of these exclusives, but based on the SDCC logo on the packaging, its a pretty safe bet.
From the modern era, we have a 2-pack of the Eleventh Doctor (Matt Smith) and an orange Dalek of the new design.
From classic Who, there are two likely exclusives. A 2-pack featuring the Fifth Doctor and the Master from the episode ‘Planet of Fire’.
The second classic Who offering is a regeneration Fifth Doctor from the episode ‘Logopolis’. Since there’s not an in-package version of this figure it is unknown if this figure is also a 2-pack with a season 18 Tom Baker.
And one last leak today, a First Doctor and TARDIS set. This box lacks any SDCC logos, so this is likely not a convention exclusive; but given how secretive Character Options and Underground Toys are this is something to share.