The latest issue of Dragon Magazine finally provided confirmation of what the 4th season of Slayers will be called. The new series will be titled - “Slayers REVOLUTION”.

This series will have 26 episodes and its currently in production by JC. Staff. According to notice inside the magazine, further information will be released in the July issue.

Source: GIGAZINE via 2ch News Navigator

I wonder if the series will feature the original casting.