I understand wanting to plan. Sometimes I’ve planned out my subliminals for the next 6 to 12 months. However perhaps over the next 30 days or so, your question may answer itself.
I haven’t seen any evidence that other subliminals are interfering with DR. DR is doing its thing, even though I’m running major programs in T^2.
If you truly only want DR Ultima, remember the warning on the description page. Now having warned you, perhaps it will be available in the custom store as a stand alone, or to chuck in with your favorite healing modules.
I and others have been thinking this too.