Consular Processing on I-140 and H1B application

[ANC89]

Hi,

I got my I-140 approved very recently (priority date - 09/03/2019) and when I check the status in USCIS website, it says - "On February 25, 2020, we sent your case, Receipt Number XXXXXXXXXXXXX, to the Department of State for visa processing".
My attorney opted for CP since I am in India now. I came back from the US on June 5, 2019 since I maxed out 6 years on H1B.
I have 2 questions :
(i)    My employer is currently saying that they will file a cap-exempt H1B for me on basis of my approved I-140 so that I can go to the US and work for the same client.  It should not be a problem for me to travel to the US if my H1B is approved, correct?
(ii)    Once I am in the US, is it possible to change from CP to I-485(Adjustment of Status), or should I stick to CP. 

Any response is helpful and highly appreciated. Thanks a lot in advance.