Refreshing Siege is a key part of a successful WvW match. With out Siege you cant take/defend Towers/keeps.
So what I propose is a siege decay timer that shows up under the seige’s health bar. Make it Blue and have the remaining time in the middle of the bar (If you choose to show % on your title bars via options).
[——45:17—- ] <- For example.
This way there is no question on the siege decay time, and it will help roamers to remember to refresh siege as they pass Keeps/towers on their way to camp Flip.
This is a quality of Life change, and I would greatly like to see it added to the game ASAP.