AGK is a perfect platform for making really simplistic games for mobile devices, and though almost everyone is using mobile devices, there is a ton of stuff you cannot do on them. You will never convince me to play an FPS on a phone/tablet, unless that device is connected to a TV and a keyboard/mouse or controller, but then it really isn't a phone/tablet anymore.
AGK filled the gap that existed when DarkBasic projects could not be easily ported to mobile devices. I am hoping that AppGameKit was not meant to obsolete DarkBasic, because it never will, unless AppGameKit can support plugins and perform DLL calls, and essentially replicate all of the DarkBasic functions.
At this point, I am not sure if there will be a DarkBasic Elite. I can, however, almost positively guarantee that there will be an update to DarkBasic due in part to FPS Creator Reloaded. If you read his blogs, Lee has already fixed issues with compiler speed, the Blitz Terrain plugin, and found an error with
load image that caused it to use more memory than it should. He mentioned the DarkAI plugin as well, so we might see updates there too. As he "nit picks" at the DLLs for FPSC:R, he is essentially updating DBPro. We only have to wait for him to officially package the updates and release them, which probably won't occur until well after FPSC:R is running smooth by his standards.
Additionally, in one of his most recent blog posts, he even hinted that it would only take around 6 months to rewrite the graphics engine for DX11, which he would only consider after defeating DX9 (to maintain backwards compatibility), so we *might* be getting that as well!
I don't think it is a matter of "if", but of "when" at this point.