AFAIK the data management suite have not been released. yet.
Theoratically, SAS may offer to some key accounts to try it out prior to the general release.
Regardsless, for SAS realse information contact your SAS Insitute sales representative.
If it's worth to migrate to Viya without data management in place - depends on how much you have invested in DI, and how the future looks for your application/system.
But a general answer without knowing the details - no.
A 1-1 migratoin requires data mangement.
Data never sleeps