I haven't yet pondered what such a speech may be like, but something tells me if it comes to that, it'll be something for the ages...something that galvanizes his supporters, makes them love him even MORE, loathe Biden even more, and leads to greater strength.
Some sort of massive multimedia event...a Woodstock-sized rally, maybe he doesn't concede but he RESIGNS Jan 17 and Pence becomes President for 3 days...sort of a "you can't fire me, I quit" thing where libs don't get the satisfaction of unseating Trump.
And he holds a rally in DC on Jan 20 that draws a zillion people.
Bet on it!