since whist is mainly programmer, so reworking d2 engine is easier than creating new from scratch
as we can reuse asset that already exist from diablo series to be implemented in sigma
i have some experience doing some games in the past, you need bigger team, time and money generally than modding.
Finally someone who thinks before speaking.
The human resource,time and money is everything.
So yeah anything is easy when you have those . So please , to the guys that cry when someone doesn't share their opinion, first think , then complain about rudeness. I don't know why you felt the need to cry. You said a ineptitude and I provoked you to carry it out if you claim it's so easy.
Maybe donate some money and then expect better result.
Have some respect please.