Hello,
Sorry, I have not been able to get any conclusive information regarding a Developer's conference in 2024. With that said, I have not got any "hard" yes or no. So anything can still happen.
To be realistic, and this is only my guess, if there is going to be an event this year, we/you should have heard about it by now. This is not a thing that is planned overnight.
I recommend all to contact your Danfoss sales representative and ask. Let them know that this is something you want.
Have a nice day.