just started pvping again and wondered what happens if im not able to cap those 17800 points in the first week.
im now sitting at 13860/17800 points
i assume my cap for the next week will be 3940 + the cap from my 1800 team?
Yes you are right, and lets say for some reason you dont get any conquest at all (didnt play, didnt do arenas/RBGS), the week after your cap will be 3940 + 2200(New Week) + 1000(Catchup).
Now lets say this week you only have time to cap 1000 this week, then the week after you only get the 3940 + the 2200 from the new week or the rating of yur arena team.