In response to a post on his message board, Ken Penders had this to say about Lara-Su:
Also regarding the character of Lara-Su, while that may have been an alternate version of her[in Sonic #106-109], she is now an established character and will return sometime after issue #125.
Those of you hoping to see the ”real” Lara-Su will seemingly get your wish.
Source: Ken’s Comic Book Stories & Art