Initially he was said to be expected to make a full recovery, but that
seems to be in question.

https://www.sfchronicle.com/bayarea/article/Skull-fractures-like-Paul-Pelosi-s-have-17542594.php

Paul Pelosi attack: What experts say about the prognosis after skull
fractures

From the article:

Pelosi’s doctors have expressed optimism about his recovery. But
according to Dr. Angela Lumba-Brown, a traumatic brain injury expert at
Stanford Health and associate vice chair of emergency medicine, victims
of assault are more likely to have a traumatic brain injury than are
people who fall, get into car crashes or suffer sports injuries — the
other leading causes of head trauma.

“The unique thing about brain injury from assault is that it has been
linked to a higher risk of post-traumatic stress,” she said. “Which
makes sense” because the person has been attacked.

Abrams of UCSF also cautioned that older people “tend not to do as well
with brain injuries in general,” and noted that such injuries can be
made worse by underlying problems that have accumulated over the years,
including cognitive deficiencies.

Obviously we'll have to wait and see what kind of recovery he makes, but
the fact is this is the second legitimate attempt on Speaker of the
House Nancy Pelosi's life, the first being Jan. 6th. Pelosi is second
in line to the Presidency, making her the third most powerful person on
Earth, and right wing assholes are turning this into a banana republic.