Personally, unless as Cx2 said the game was complex enough to rival something like civilization, I'm not as much in favor of the idea. There are literally hundreds of more or less complex turn based textual or link based mmorp stratogy games on the net, warring factions, Ogam, Zagraph, 1000 A.d. etc.
These differe from graphical games obviously in how they present their information. where as games like civilization or red allert have a graphical overview map with units and other items on it, the units in the online turn based stratogy games have grid coordinates, or specific locations devided by travel times (as in a space stratogy).
In audio though, the field of information you can take in is much less than visually. To examine a large area for example, you'd have to go square by square, or examine each if your units individually
(as in sound rts).
As well as the music and sfx, I think a dev of such a game would have to think very carefully what extras he/she was offering which could not be done in an online text mmorp.
sound rts offers real time stratogy, and is thus different.
smugglers 3 (despite the huge amount of economic stratogy available in text as well), offers the evolving war situation, and extra twists on the usual formular such as factions and random encounters.
I would therefore have rather high expectations of an audio turn based stratogy to begin with.
Personally I'd prefer devs to work on a less populated genre, like real time stratogy or rpg, or a beat em up.
It's equally possible though, that as with smugglers 3, I might be pleasantly surprised with such a game, if it was complex enough and featured random events.
With our dreaming and singing, Ceaseless and sorrowless we! The glory about us clinging Of the glorious futures we see,
Our souls with high music ringing; O men! It must ever be
That we dwell in our dreaming and singing, A little apart from ye. (Arthur O'Shaughnessy 1873.)