I'm sure you've all already seen this but a rito dev posted this on reddit:
And this
"I've been playing this beast in internal playtests for nearly half a year now and I can't fucking wait for her to go live. EVERYTHING about being underground feels amazing--the sounds she makes, your restricted vision, the "snipe the tremor sense with your Q to find out who it is" game, EVERYTHING.
And maybe some day I'll discover how to keep more than 2 tunnels alive in the late game. Let's see how you guys do on that front!"
And this
"Right now tunnels last 10 minutes. You can destroy them by standing on them as the enemy. You even get some gold."