Not sure if i followed your question.
Any msfs 2020 is working in backwards compatibility mode, as such, they will work as they did in msfs 2020.
They cannot be forward compatible mode, is impossible, the source code of these aircraft are the same as msfs 2020 code base, and as a result they cannot use native msfs 2024 technology like external click spots, walks around, career mode, etc.
They will work just like they did in msfs 2020, it is why they are called backwards compatible products.
In order to use the new technology, we have to fully convert to msfs 2024 standards and submit these as updates.
I have explained all these via my discord server many times (my official support channel). These conversations are time intensive consuming measured in cases in months.
I am not planning to charge for these upgrades, but I am not providing ETAs either because if I sit right now just doing conversions to full 2024 standards, I might end up sitting doing nothing else for 8-12 months (3 planes x 4 months each), meaning I would end up in a very bad position financially.
The current priority is to work full-time on my upcoming phenom 300E, I did a huge amount of effort and work to make all my products msfs 2024 compatible at launch date, and they do work perfectly, so I hope the message that my customer base matter is clear, they do, they are my priority always, but if I am not careful at this juncture, the FSREBORN brand could be at risk, this business of being a 3rd party developer requires always being releasing new products as otherwise you lose your position in the market and at the same time, your income shrinks massively, selling addons is not like people imagine, is a model with diminishing returns, as time goes by, your sales figures drop dramatically.
So is now time for me to push forward with new products in order to ensure my company can continue to operate in healthy numbers. I am sure many of you would love to see many more of my upcoming plans and project right?
To finish, I would like to encourage customers to join my discord server, not only I alert them about issues described on this topic, but I also provide roadmaps updates, pictures of upcoming products, advice on quirks with 2024 and how to avoid them, live chat support, video tutorials to transfer state savings of fsreborn aircraft from 2020 to msfs 2024 and many other benefits that are not possible to achieve via these forums.
All the best and love,
Raul