Won't implement.

Reason is that you can achieve same effect (rotate to a random map) with the following command (needs Dec 25 server update or later):

[code:1]/rcon execstr rotate $(sv_serverid)[/code:1]

Edit: I just found that currently its not possible to have a totally unattended random rotation. So for that i implemented a new cvar: xp_rotateStep, to control how many maps to rotate on automatic rotations (i.e. rotations at the end of the map without an explicit /rotate command). So, on next server update if you want to have a totally random rotation you can put something like this on the crontab:

[code:1]* * * * * /execstr set xp_rotateStep $(sv_serverid)[/code:1]