There has been talk of equipment upgrades at some other regional airports with KLM Cityhopper's routes to Amsterdam. LBA is being suggested for a B 737 to replace some of the E190 rotations.
BRS had a record month for the AMS route in July with 40,084 passengers carried. The route is served 4 x daily (28 weekly) by KLM Cityhopper and 12 x weekly by easyJet. KLM usually uses the E190 on all rotations but this summer has seen E175s on one rotation per day at least. easyJet operates a mixture of A320s and A319s to AMS.
I took Mayfly's list of aircraft types for each rotation in July and worked out that across both airlines approximately 94% of available seats were taken. I discounted at least three cancelled sectors in July which would have put the overall average loads up by a tiny bit. Of course, it's not possible to ascertain each airline's split of the loads.
Over the last decade BRS-AMS passenger numbers have been rising steadily after a drop at the time of the recession.
These are the annual figures from 2008 to 2017 in 000s: 244, 230, 224, 289, 310, 321, 350, 384, 408, 410.
The figures for 2018 (Jan-July incl) are 250,061 compared with 237,282 in the same period in 2017. That's an increase of 12,779 or 5.4%. A similar percentage increase for the whole of 2018 would give an annual total in the region of 432,000 passengers.