Ofcourse, without any revenue model it is bound to happen. Jupiter and other Neobanks will be no different.
Banks main source of income is by providing credit/od/loans to end users but this is not the case with Neobanks at least yet.
Since Neo bank segment is at very nascent stage and unregulated, it would be very hard to predict the future.
Not sure if you know or not but all the major ecom (Flipkart, Amazon)entities are in loss as per the tax data they file.