I doubt it. Cast usually works their vacation time to coincide with when Days closes down for a week each month, plus the extra weeks at holiday times. They receive their scripts a week-10 days before hand. Now, if there is some future important date, they let the brass know they would prefer not to be working that day/week. Sometimes the writers have to really scramble when an actor is ill or gets hurt, and do fast rewrites.
No, I am GUESSING that Lucas just was not party of the Memphis Mafia that went after Will, especially with Lucas being in a drunken stupor 24/7.
And, we do know that cast members just get backburnered for days or weeks. They just vanish for days, weeks.