Lois Lane (LE300) & Superman are both new head scupts. Krypto (LE300) was given as a table favor and he will only be made for this convention & a few for Wizard World Philadelphia (see below).
Lana Lang is the Companion Doll (LE300) - she's also a new sculpt. We have no information on whether other versions of Lois and Lana will be made available in the regular DC Stars line. This debut Superman will appear in the regular DC Stars line - 200 advance pieces were made available for the Tonner Convention - and 100 will be made available at Wizard World Philadelphia, later this May (see company calendar for details - www.tonnerdoll.com/calendar.htm