I avoided Eternum for a long time because the graphics didn't particularly appeal to me. Last week I found out in SG that Eternum had collected more awards than SG. That got me interested and I've now played through it.
In .6 I had the strange feeling that something was "brewing" here, and in two ways. In .7 this feeling was further strengthened.
The first feeling concerned the MC himself. He actually thought he was invulnerable, he's the greatest, he's the best, etc. Well, the cliffhanger shows us that someone has been brought down to earth in a really bad way. And that's a good thing!
This cliffhanger makes me fear the worst for my second feeling: MC's relationships with the 7 LIs and the group as a whole. It seems like every girl wants the sexual activities to remain secret and FOR GOOD REASON!!!
I don't know what the Dev is planning, but he has meticulously outlined the stages of each LI's relationship; first meeting, acquaintance, friendship, friendship with extras (petting, BJ, etc), friends with benefits (sex). All my girls have between 4 and 5 hearts and the MC has fucked 4/7. Now what's the next stage? Some of the girls are starting to think. There is also a certain rivalry or they are getting into position.
Everything else is pure speculation, but the cliffhanger shows us how far the Dev will go!
[edit] I looked at the programming of the scripts, and the developer explicitly provided this multipath.