I would like to know if I do purchase the AWS Certified Solutions Architect Professional today would it also give me access to the 2019 version?
I would suggest you just purchase the Solutions Architect Professional 2019 course. We expect the new exam to be released around Feb 4 and the old exam will be not offered past Feb 3. Plus, the 2019 version covers the old exam blueprint as well as the new blueprint.
AWS Certified Solutions Architect – Professional (SAP-C01) Exam Guide
Domain % of Examination
1. Design for Organizational Complexity – 12.5%
2. Design for New Solutions – 31%
3. Migration Planning – 15%
4. Cost Control – 12.5%
5. Continuous Improvement for Existing Solutions – 29%
TOTAL – 100%
It seems the curriculum of the new course is out: