Sure they can , i'd allow it. That sure would change things up quite abit . Megadeth , Exodus, Obituary and Carcass. The Big 2-n-2 , that would be a wet dream.Obituary cannot be in the big four lol They are death metal. With Metallica and Slayer out now I would put Testament, Exodus or even Overkill.
Why?Pretty much shot in the arse now.
My B4 was never that , B3 yea.Why? ...because shit happens.
The B4 will always be the B4. Regardless if they are touring or not.
That wouldn't be the big four of thrash which is what the big four represents supposedly. To me the big 4 experiment was complete shit and an insult to bands like Exodus, Death Angel, Testament, Overkill to name some.