What about the season points requirement for earning gold rank & crystal rank? Is that going change given that this season is only 2 months?
Yes, the season point requirements are the same. Because while this season is shorter, there are also more season point sources. Which in total should create an even higher season point pool.
Keep in mind this is an escalating event and over the course of the event more things will be added. Some of these things might also reward season points.