When will the trial for voter fraud conspiracy begin?

As soon as Trump is out of office. He'll be in Dubai by them though.

That depends on if the persons have fled the country or not that they're going to prosecute it's all in the beginning stages and it gives plenty of time for these persons to flee the country

If there is evidence found, there will be investigation(s). Be careful for what you wish for. It's a lot more likely there was fraud coming from trump's side. He's had practice at cheating and let's face it, he got a lot more votes than anyone expected.

See how that works?

There have been about 30 court cases where republicans alleged some sort of election impropriety.  They have all been dismissed for lack of evidence.