The PR blitz is on as the new owners of Gage and Tollner prepare for its re-opening on March 15. Stories have appeared in the Times and on NY1, both emphasizing nostalgia and innovation, as the 1879 restaurant re-creates itself for a 2020 clientele.The new G&T is brought to you by the owners of Red Hook’s Fort Defiance and Gowanus’ Insa, who recognize that stalwarts of the restaurant’s previous incarnations will come with high expectations, but the proprietors also acknowledge that the dining…