I think the main thing here and I agree with Jon is that with using one platform it will allow the Wappler team to iterate and inter grate so much faster (I was really surprised to see support for asp to be honest!). At the moment they essentially have to test and make most features for 3 languages.
Now imagine that is taking them 3 times as long (I don’t imagine it does because I’m sure there is efficiency gains from integrating a feature in one language already) then they would be able to create and add features three times as fast. At the rate they already produce features that could see a completely different powerful platform than if they still had to maintain support for those three languages.
Now the elephant in the room as Anthony has pointed out though is if you have made a complex application in php / asp your in a predicament if support is dropped. I think doing what JonL suggested is a great idea. Just Security releases for x amount of years. This would allow a feature freeze so no extra work needs to go into implementing features into the other languages (which I get a sense is kind of already happening to some degree as some things are just not possible / easy to do in php/asp). However I do think as well a conversion process would be really appreciated that would aid in converting your php / asp app into Node.
I am biased on this though as I haven’t made anything yet so I don’t have the struggle or pain of having an existing application that I have been making for many hours / months that is now being questioned as to how long it will be supported.