If you look at the path on the link you posted, the training courses are either on 6.7 or 7.0 and the exams are on a mix of 6.7 and 7.0.
The order in which you complete the 3 hard requirements (training, Foundations exam, Professional exam) is up to you.
So the short answer to your question is "yes".
Just bear in mind that the 6.7 exams will retire before the 7.0 exams, and 6.7 training will also disappear from training schedules before 7.0.
Thank you, when are the 6.7 exams going to be retired?
Do not want to end up in a situation where I have taken/passed one or both 6.7 exams and by the time (likely before end of 2020) I take the v7 course they expire.
I can't see dates for them in this: https://www.vmware.com/content/dam/digitalmarketing/vmware/en/pdf/certification/vmw-retired-certifications-exams-badges.…
Retirements are usually announced here: VMware Education Services
Note that a VCP is linked to the calendar year in which you completed the final requirement - I don't know if the VCP-DCV 2021 would also include 6.7-based exams or training.
Thank you, that is helpful