It's the same old hop back and forth across the border - whack a Tali on one side, they pop up on the other...
Well, there has been some improvement. Now Talibans are squeezed from both sides: Afghanistan and Pakistan. Unless they secure new sanctuary outside both countries, things will get difficult for them. The success now depends on how they can manage Afghanistan in terms of politics and economy. If they screw up, no doubt Talibans or some other group will be back.
The major change in the war against the Taliban is that they are now sandwiched inbetween Pakistani troops (with US liaisons and drone air strikes). Thus not only are the Taliban hit by ground troops, artillery and aircraft, but also at any time by the drones, the fourth leg of the offensive to decapitate their leadership and demoralize the regular fighters.
On the Afghan side, we are doing the same thing, some of which is unannounced and for good reasons.
Now that the Taliban has fled from Marjah, despite their vows to hold it, they have lost some face. And remember, everyone of their members killed even in the delaying actions, is one less fanatic to fight another day.
The old squeeze play is on, and I expect that you will see some very innovative US/NATO operations in the future. If you read good Vietnam military histories/operational reports, you’ll know what I mean.
Been there.