While we will ease up on the minimum entry requirements, we do not have any plans to make adjustments to the content difficulty.
Especially for assaults and Nyzul Isle, these are closely tied to mythic creation difficulty. You challenge these solo by using dash items and such, and if lady luck is on your side you may be able to clear them.
It's possible for us to remove the entry limitations for everything at once, but it would take us a long time to adjust the difficulty for everything.
With that said, we will reduce the entry requirements and eliminate level restrictions, but we do not plan on adjusting content difficulty.