I can make this judgement because gankers won’t use talos*** for ganking a large majority of targets. It isn’t profitable so they will resort to cheaper ships like the catalyst. It is not rocket science. As for tank, it is easy to estimate what they will need for a max tank. Plus they can just scan it real quick if they absolutely need to.
Ganking will not change much. Mining is no safer against gankers than before. The cov/hulk and retriever/mack just wont die to rats as fast anymore is all.