If you like Goldbox games and the Ravenloft and Buck Rogers settings, don't discount what Unlimited Adventures has to offer, while you're waiting for the real thing. There are several Ravenloft stories available for it and at least one shorter Buck Rogers module that I know of. ;)
I do actually remember building some sort of campaign adventure with Unlimited Adventures with my brother, we thought it would be cool to build one on computer game since we've both been doing PnP RPGs for a very long time (although in PnP regard, haven't had a group for ages, unfortunately).
I personally think it is amazing that GOG provides us these old gold games because they do not make games like these anymore and I don't think they ever will.
I have to take a look at what the UA has to offer adventure-wise, thank you for the tip for the stories. :)