Its best to hear it from the Horses Mouth, Trumps Lawyer explains what they have as a case. Take it for what it is, and watch what happens, they have untill Dec 10 deadline is comming quick.
Obvioulsy, like any and all court cases, there will be no evidence shown to anybody, untill the "Discovery" phase. Showing such will always give the opposition a chance to do things to counter the evidence, no matter the court case.
And like every election before this, no official winner can be declared by a TV network, it will be the Electoral Collage on Dec 14th, weather Trump conceeds or not.
I , for one, will accept anybody who won the POTUS, UNLESS they cheated to get win. Im sure we ll feel the same way.