Sorry, I missed this at the time, so let me explain my position on this.
SC should focus on EBTs, i.e. the scope we currently cover, or else the size of the project gets out of hand. We are just a few people and the amount of Buddhist texts is huge. To get an example of the difference, the root texts we currently use have perhaps 10 million words, whereas with the expanded scope it would be many hundreds of millions of words.
However, SC’s data technologies are extremely good and highly suitable for expansion. In particular, our bilara-data format is, IMHO, the best way of handling Buddhist texts that there is. We have, in fact, already been in discussions with scholars of the Lingae Dharmae project:
Their focus is on making machine translations for scholarly work. But the underlying idea is that all the texts could be adapted to use bilara-data format.
This is really the critical thing. Forget applications. The hard part is the data. Once you have the data in a single, unified and predictable form, it is simple to make any number of applications to use that, whether it is for reading, translating, analyzing, etc.
So no, we won’t feature later texts on SC, or at least, we won’t devote our time to compiling and translating, etc. But we are happy to work with others who aim to do that, and once completed it will be simple to integrate them.
They’re not. The EBTs are those texts that can be reasonably thought to have been created in the Buddha’s lifetime or by the early Buddhist community before the split into schools. Effectively that means the Suttas and Vinaya, although not everything in there is early. We also include the Abhidhamma for completeness, even though only a small portion can be traced before the schisms. We also have some Sanskrit texts that are late (eg. Lalitavistara) but which include portions that quote early Suttas, as well as later treatises if they quote extensively from Suttas (eg. Upayika).
Thus the content on SuttaCentral is an “inclusive” idea of the EBTs; we aim to include all texts and collections that might contain at least some significant content from the early period.