FC/ASW to be exact, or as they called the program in the UK : Spear 5
It’s supposed to come in 2 variants :
stealth subsonic (the one on the right in your picture), direct successor to storm shadow
high supersonic (Mach 3+) and not so stealth (the one on the left in the same picture), successor to Harpoon / Exocet
As for the roles, it’s supposed to be antiship, cruise as well as anti radiations for SEAD. Some sources also point to it being a potential “Super long range meteor” for anti awacs duties.
We’ll see what the finished thing (things ?) can do though, only speculations for now.
The thing isn’t that theoretical anymore, as the program is currently funded and in development phase
AFAIK the subsonic one is called TP15 and the high supersonic one is called RJ10 in france, but yeah the SEAD missile should be based on a supersonic model (RJ10, as you said)
Very interesting program tbh, but i’m afraid we are going a bit off topic.
In any case, more sea strike capability for EFT / Tempest
“Moreover, reaching 40 degrees AoA is not possible for a missile of such design, as Brimstone, as it doesn’t have neither big enough control surfaces nor thrust vectoring.”