I personally like Genesis, but it only works as advertised inside of Daz Studio, not Poser.  I never used it in Carrara, so I wouldn't know it's functionality there. I have the Generation 3 and 4 morph pack addon, and the addon to include all the morphs for those legacy figures, so I can pretty much reuse all my content from V4 and V3 that I accumulated over the years, on Genesis.  I like that I can switch from the new Genesis UV's to the V4 UV's with a dial turn (I assume they did this by mapping the figure with multiple UV channels, which isn't revolutionary at all, and is also available in 3dsmax and other high end applications), but most users see it as Black Magic.

All the Gen 3 and 4 figures were made from the notorious "unimesh" that Daz had for years.  I think all Genesis is, as a figure, is that Unimesh technology, released as a standalone figure.  They created V3 and V4 from this mesh, just like we are able to do now, as a morph, and called it a new figure.  Everyone knew that years ago actually, but we never had access to the original "Unimesh", until Genesis 1 was released.

I think the new Carrara is going to get the Ptex-like subD that Daz Studio now has, and Poser has.  Reason being, if they want these new HD morphs to work in Carrara, it MUST support that.  No doubt about it.  That will be a really big new addition to Carrara 9, no doubt, and a big sales bullet point.  No telling if any of the other things you are talking about will be addressed, but it makes perfect sense now why they added Fast Mipmap support for that reason, and the new Genesis support, and released it as a way for users to warm up for the big integration in version 9.

You gotta follow what Daz Studio is doing in order to predict what they have in store for Carrara I think.

My biggest peeve, if I were a Carrara user, would be... why bother?  Carrara is very poor as a modelling app (sorry to anyone using it as such, but bless you for being able to make things with such limited functionality), and the render engine is good, but OLD.  Outdated.  It's modelling tools are also from 1998, except the dynamic extrusion tool, which is hard to control, and not exactly modern either.  So it wouldn't be a great tool for making HD morphs on these Genesis figures, UNLESS they added sculpting tools??

I have a feeling they may just slap Hexagon's modelling tools in with Carrara, maybe in the next release, as added features to make people happy and sell it to former Hex users as a modelling app too, thus why they never bothered releasing another version of Hex yet.

However, Hex, as it is, is buggy, and not fun.  It's still far short of most high end modelling applications in it's selection tools (selection tools can make or break a modelling software), but it's quite a few levels above and beyond where Carrara itself currently is with modelling tools, so it would be a great addon.  But they may also impliment sculpting to help in creation of HD morphs.  That sounds logical at least, although not what you were hoping.

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Tools :  3dsmax 2015, Daz Studio 4.6, PoserPro 2012, Blender v2.74

System: Pentium QuadCore i7, under Win 8, GeForce GTX 780 / 2GB GPU.