So, I of course am going to do the CtA 2026. Love the event and getting more stuff finished! So far, I've decided to challenge myself and complete at least 5 points, or a minimum of a character model/5 man squad, in each of the Strongholds (Space Marines, Imperium, Chaos, Xenos, and Horus Heresy). I don't have a lot for all of the Strongholds, but I have at least a single character that I can do. Here's what my plan is so far- 

Chaos Vow - All Word Bearers
Chaos Lord in Terminator Armor
Warpsmith 

Master of Executions
5x Terminators
5x Chosen
5x Legionaries
5x Havocs
2x Obliterators 

Heresy Vow
Marduk Sedras (To be used as a Belial count-as in 40k, but will be painted as HH-era DA) 

Astartes Vow - Riven custom chapter paint scheme
Azrael
3x Eradicators
12x Inner Circle Companions (Half Riven, half HH-era DA paint scheme)

Imperium Vow
Vindicare Assassin
2x Necromunda Brats gangers
Commissar Catticus (a 3d printed model I was gifted, but I suppose it could be used as an actual commissar...)
4x Inquisition Kill-team members (specialists)

Xenos Vow
Buri Aegnirssen

For three months, I think that is imminently doable, without over-committing. The basic plan is to do the Imperium, Heresy, and Xenos  vows first, as I'll have basically two weeks to get them done for the 12MoH and I believe that all of them won't take too long due to their fairly simple schemes. Then I can jump into airbrushing the Word Bearers and Riven models and start up the batch painting, while leaving the characters to last. I have plenty more to paint if I wind up getting done early, but the most likely thing I'd do is paint up my Nightbringer conversion. It'll be a fairly busy three months (especially as I have some non-board appropriate minis to do as well), but I'm ready for it.