We really only have Manuwa and Vassell who have proved they can cut it at the top level.
Taking this shit, one day at a time.
The HW scene has always been weak. Cain has Werdum next then who? Randy is his mid 40s return to HW and dominated on route to winning the title. Could a rookie like Lesnar repeat his success at WW or LW?
Within the UK scene, most of the HWs I've seen are blown up LHWs - It would not take much to get their weight under 100kg and then it's an easy cut to 93kg.
Is there enough depth at LHW for Cage Warriors to build a division? Maybe not now, but with a bit of effort maybe they will have 6-8 names they could build a title run around.
All Cage Warriors would need to do is to try and aim to have maybe 1 LHW fight on every other event.
I don't think you could do the same for HW.