It makes complete sense for the Studio to be updated this WWDC. Rumors in January stated that Apple was working on a N3E version of the M3 Ultra to ship in the new Studios. What Apple did is simply rename chips with this new N3E process to M4, which now allows them to ship these most powerful machines first, and correct this abnormality in their release schedule that has the Pro machines being lapped by less-expensive consumer machines so soon after release.
There was never going to be an N3B version of the Ultra, but there was going to be an N3E version, called the M4. And they can have it ready by now because they have been working on it for as long as they would have been working on the M3 Ultra.
There was never going to be an N3B version of the Ultra, but there was going to be an N3E version, called the M4. And they can have it ready by now because they have been working on it for as long as they would have been working on the M3 Ultra.