Chase has a note on the referral page that the yearly maximum of referral points earned per INK business card is going down from the current 200,000 points per year to the new 100,000 points per calendar year limit.
The change goes into effect on January 1, 2025. With the current earn rate of 20,000 points, you’ll be able to get 5 referral bonuses per INK card.
Hat tip to MrHeatherroth