May I ask a potentially stupid question? I think you've mentioned that you would normally do "canon" events (meaning that you recreate the story that Ferdafs creates). Why I ask is that many people (from posts and what not) REALLY want a Summer-Beth encounter/story.
I don't foresee Ferdafs creating this anytime soon. Would you ever create a story like a Beth-Summer story outside of Ferdafs? I feel like you are the only person truly leading this, and that many people LOVE your Renpy remake (including me!).
This is a complex topic that I've touched on a few times, but the very short answer is: maybe? But, very unlikely...
The longer answer is: not any time soon, possibly never. And there are a couple reasons as to why.
The first and biggest hurdle to new scenes is art. I am not a very good artist. I've been working most of my life to try and improve, and while I can do some technical aspects of it okay~ish (such as outline (tracing) or flat colors), when I try and make stuff from scratch it is mostly terrible. The vast majority of "new" art I've added is composited edits of existing work from other scenes in the game.
If i was an artist, I would spend time making my own game (and I have, and I've abandoned most of them because I can't make fucking art (art of them fucking?) for them)... but, I'm not. So this is the limits of what I can do with the skill sets I have...
The second issue on adding in scenes of this nature is getting ahead of the Unity game. The primary goal with this project is to bring scenes from the unity game over into renpy. Without the unity game, the renpy game doesn't exist. While I can "adapt" aspects of scenes (they all need a bit of adjusting at this point (getting worse and worse as we deviate further away)), I still want the primary core of the scene to remain as it was in the original.
I am very, very, very hesitant to write anything that takes us beyond where the characters in the Unity game are. Every time I advance a character, it makes things more difficult to fit in new scenes. And as the majority of scene come from Ferdafs, if I make the games story incompatible, I may reach a point where I can't use a new scene (which, has happened, and required us to move a bunch of things around and put the scene into a past day for it to make any sense).
Additionally, lots of hurdles to a Summer/Beth scene stand in the way. Neither Beth nor Summer have really shown much of an interest in each other (sexually), so any sexy stuff between them would come somewhat out of nowhere. While Morty could be a facilitator of this interaction, Beth doesn't really know about his goings on with other girls. Finding out about him and Summer feels like a big moment the unity game needs to explore first.
So there is either a lot of ground work needed before this scene, or a McGuffin (like the hypno-toad) to make the scene work. Both of which, again, take us further out from the unity game story.
So while this isn't a hard no, it is sadly one I can't promise to add into the game any time soon, or possibly ever. Sorry
Also... I personally want to support this work financially and technically. How would one get involved to help you?
I don't accept monetary support of any kind for this game (you can check out the FAQ to see why), but if you really have a desire to donate, consider supporting Ferdafs, as without the Unity game, this one won't keep going (although, side not, part of the reason I stopped donating to his Pateron was both a lack of communication from his end, and that it felt like giving more money didn't seem to motivate work (also, also, I donated for more than a year, so, I've paid more than full price for the game at this point, I don't feel bad about getting it from here)).
As to other ways to help, just being active on thees forums and suggesting improvements or sharing thoughts about the game, is very helpful. The game would be far less good if not for the amount of involvement the members on this forum have contributed, from small typos, to whole scene ideas. So, congratz! You're already helping with the game!
As for team members, at the moment I'm not looking for any roles outside of a full time (free) artist that has the time to deliver at least one full scene per update.