Iris Theme: Upgrading to Blocks Pro

Hi Jennifer, 
I think I’d like to upgrade to Blocks Pro as then I get direct form integration with ActiveCampaign (rather than needing to create a form which is slightly off design!) and I’ll also be able to add some movements on some elements. 
If I do this, will I think need to redesign all the block as Pro blocks, or will more features/options become available in each of the existing block settings? 
Hope that makes sense! 
Thanks,
Katie