If you'll manage to have lending and casino games it will more then an all-in-one platform, are you sure that you will be able to handle all of this?
Many have tried to create such an all in one service platform but it is indeed really challenging to deliver a working product.
It is true! Almost impossible to do actually, because projects that want to do an all-in-one do not understand that it is not possible unless you do it with partners.
Then you become a aggregator of APIs and give your users access to thousands of partners apps (or Dapps).
The world is heading to it (read more about open banking, platformization, PSD2).