I've got an update which I confirmed with Mark Mallinson as something I can officially talk about. Much of the info already posted has been (mostly) accurate so this is a bit of a rehash and re-organization of that info along with some new stuff.
1) The current Invicta is out of stock and will be phased out come mid-May. I'm not sure if the current version will have more stock prior to that or not. Moving forward, Resonessence is taking a fork in the road with Invicta splitting into two models:
2)First is the previously mentioned Invicta Mirus which is a dedicated DAC only (no headphone section). While losing the headphone section with the ES9016 chip, Mirus features dual ES9018 chips dedicated entirely to the line-out. They run in parallel so it's essentially 8 DACs per channel, or something I call Octa-mono mode (I just made that up!) rather than quad-mono like the original Invicta.
3)The second variation is yet to be named (Invicta 2? Invicta part deux? I dunno...) but it stays more in line with the original, only this time the ES9016 on the headphone section is replaced by an ES9018. So it still gets dual ES9018 chips but in a different configuration than the Mirus.
Both models will have some other upgrades and tweaks such as sample rate indicators for 352.8kHz and 384kHz. Both are priced at $4,995.
4)Next comes the Concero which will remain in the lineup and as far as I know will keep the same $599 price. It can't handle DSD due to limitations of the ES9023 chip used, but it can now handle sample rates up to 384kHz over USB (which would be DXD files).
5)Next they have the Concero HD which uses a different (32-bit) Sabre chip and can in fact do DSD. The better chip should mean better SQ so it's not just adding DSD to the existing model. They are shooting for a $799 price if all goes according to plan. This is due in June.
6)Lastly is the Concero HP which I believe we saw a picture of earlier. It uses the same Concero chassis as the other models, and the same 32-bit Sabre chip (DSD capable) as the Concero HD, but has a built in headphone amp. The HP model is USB only, while the HD (and the original) have USB plus the coaxial SPDIF input. Pricing is also tentatively set at $799 and this should also ship around June.
So there you have it - Resonessence seems to be branching out to higher territory with the Invicta line, while keeping the "low" end covered with the original Concero and filling out the middle to some degree with the new Concero variations. They have some other ideas kicking around but for now this is all that's really set in stone. Oh and by the way - the Concero HD and HP have one more interesting aspect that I can't talk about yet... soon though.