here are the missions for week five: and again a portal featured mode...... this is not good for late season players but hey DICE is knowing what they are doing 😉
@CantGetRight From what I have read, no, when S1 is done, S1 is done, at least for the achievements like Season Mastery and the tier completions. So if you end S1 at Level 98, you can't progress after it ends.
However, the items missed would somehow be available in future seasons, but they never said how those would be available (for purchase?).
@Adamonic I believe it means items missed as in gameplay related items would be available to unlock. The cosmetic stuff in the battle pass missed are just lost.