...or they could just bring Lance back as the WY rep that designed Bishop. Might be good way to acknowledge Alien3 for it's efforts while, at the same time, moving the franchise in a different direction.
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But if they don't find a way to bring him back, I'd be perfectly okay with that too since his character may or may not be relevant to the story. Also, unlike Biehn who was screwed out of the franchise for decades, Henrikesen has been in almost as many Alien-related films as Sigourney Weaver. He's also made money on numerous video games related to the franchise and even narrated the audio book for Foster's novelization of Alien3.