Should I still use Arkos Tracker 1 instead of 2?
No. Not at all. AT1 is not as stable, not as powerful, not as user-friendly. It is not supported anymore and will not evolve one bit. So unless you are so in love with it that you don’t have the heart to leave it (and I thank you for this), you should use AT2.
Should I use AT2 to create a MOD?
There is no converter from AKS to MOD, and I don’t intend to code one, so I do not advise you to. MOD is targeted to ST, Amiga and PC. AT2 formats are designed for 8-bit hardware with no resampling ability.
Is there a sample player available to play the songs including samples?
Not currently, but it is my intention to do at least a “MOD” player for a sample-only music.
Will a half-track player be released (two FMs, two digi channels)?
Such players are possible, I did it for the Landscape part of the DemoIzArt. But I will probably not do it, as the FM player is available, and the MOD player eventually. It will be up to the coder to do the rest. You have all the cards in your hand to create one. For now, my advice is use the AKY format for the FM part, and your custom “Digitrack” player with the data from to the raw export.
Is there a 68000 player available?
Not currently. I don’t code in 68000 myself and I know nothing about programming the Atari ST, so it will up to some else to do it. Please contact me if you’re interested!
Will there be ST-SID one day?
Who knows, maybe? Depends on how much you ask for it. There is nothing that can prevent AT2 from including SID support. The problem lies on the hardware: SID players are quite tricky to do, and a player I would provide may not fit all the needs, resulting in a player that no one would use.