There are old "special worlds" with old settings on live markets as well, and Sandbox 2 is their Beta representative. Those old "neverending" worlds usually have accounts sporting a 4-digit number of cities and will often enough run into some problems after updates - problems that cannot be identified by players with much smaller accounts now typical for all new worlds.
Thus, as long as there are those old "special worlds" on live markets, Sandbox 2 should stay untouched.