Einstein reconciled the fixed speed of light from Electromagnetism, with Newtonian gravity, in a classical theory - I don't see that as 'extending the framework', but as describing what happens in the existing framework, and recognising that it looks like space bending due to gravity.
TLP 6.54: "My propositions serve as elucidations in the following way:
anyone who understands me eventually recognizes them as nonsensical,
when he has used them—as steps—to climb beyond them. (He must, so to
speak, throw away the ladder after he has climbed up it.)
He must transcend these propositions, and then he will see the
world aright."
Known as Wittgenstein's Ladder
People very often seem to chose to make a mistaken interpretation not of Wittgenstein's thought as a whole, but of the TLP - against what is in the text itself. His point as I see it was to follow through the implications of the picture theory of language, and so find it's limits:
"Whereof we cannot speak, thereof we must remain silent" - ie the saying showing distinction. This leads directly to the Private Language argument, and the implicit precursor to speaking of the unspoken nature of intersubjectivity, seeing from another person's eyes.
Wittgenstein does choose a narrower business for the rather sprawling enterprise of philosophy. I would describe it as advocating a tighter focus for the subject. What was once Natural Philosophy, is now a far bigger subject of study, and science is consider to be separate. So philosophy has been changing, over time.
Wittgenstein kicked off Ordinary Language Philosophy, the shift to observing how we do in fact communicate, over creating 'perfect' formal languages to eliminate apparent problems that had not even been fully considered. That makes the scope if philosophy wider, not narrower, than it had become.
There are certainly strands of philosophical thought Wittgenstein dismissed, like mysticism. Yet at the same time, I would say the tools of his thought are exemplarary for examining what the interesting mystics are about, those not just seeking to mystify. And that evidences for me the value in his pursuit of a sharper focus for philosophy.
"In this sort of predicament, always ask yourself: How did we learn
the meaning of this word ("good", for instance)? From what sort of
examples? In what language-games? Then it will be easier for you to
see that the word must have a family of meanings." -Philosophical
Investigations
See this article for examples of this in action: Nāgārjuna, Nietzsche, and Rorty’s Strange Looping Trick