Re: Drake?
Not much change, I'd think. The Drake formula is just a long catalogue of things you would need to know to make an informed estimate of the likelihood of life elsewhere: values for all the terms were guesses depending on how keen you were for SETI funding. Fraction of stars with planets was an optimistic guess of around 1.0; just a guess. All we have now is a tiny bit of data suggesting there may be a a lot of planets, making the fraction somewhere in the range >0 to 1.0.
Still no information on all the other terms in the equation.
(I do wonder at the habitability index: for all we know, that's a guess too, and we may as well be using OLGA's formula of Gy=c)