The answer to this question is unfortunately unknown at this time. Skaven have not had a new Battletome released since 2016, so it is possible that they may be due for one soon. However, there is no concrete evidence that a new Skaven Battletome is currently in the works. Until more information is released, we can only speculate as to whether or not the Skaven will be getting a new Battletome in the near future.