Blah source but I would think this is accurate, I haven't seen it mentioned elsewhere though.

https://nypost.com/2021/03/04/kamala-harris-breaks-tie-to-begin-senate-stimulus-debate/

"The bill includes $350 billion in state and local aid and provides a $1,400 stimulus payment for each dependent child. It grants through August a $400-per-week federal unemployment insurance subsidy."

Forgot about the child tax credit part, I had seen that mentioned before. Not sure if it will be a check.

"For parents, it also authorizes a $3,600 annual tax credit per child under age 6 and $3,000 per child up to age 17. Those funds also are phased out for earners over $75,000 or joint filers above $150,000. A family of four earning less than $150,000 could bank more than $14,000 from the bill, according to an analysis from CNBC."

Okay some CNN links with much more detail. Looks like some people that couldn't get payments before will be able to.

https://www.cnn.com/2021/03/03/politics/stimulus-check-eligibility-senate-bill/index.html

"Unlike the previous two rounds, adult dependents -- including college students -- are expected to be eligible for the payments."

The child tax credit will be a check with the option to wait until taxes or get monthly payments. I guess this applies to 2021 income.

https://www.cnn.com/2021/02/07/politics/child-tax-credit-democrats-biden/index.html

Some other stuff:
https://www.cnn.com/2021/03/04/politics/stimulus-senate-democrats-proposal/index.html