I think a beach boys musical with a great book (like love and mercy) could be fantastic
one challenge for me ( a reason i liked not loved motown) is its really hard to sound just like some of the most iconic voices (beach boys, michael jackson, even elvis in that terrible musical)
im still bugged by the off portrayal of the righteous brothers singing youve lost that lovin feeling in beautiful(loved the musical otherwise)
The very beautiful falsettos of brian wilson, and the richly blended harmonies may be very tough to recreate eight nights a week, and without those, a lot of the beach boys music(good vibrations, god only knows, sloop john b, in my room, surfer girl) goes from being modern classics, to just some good songs.
I think it really helped mamma mia and jersey boys that most american audiences, while familiar with some of the great hits of each group, did not have the familiarity that most have with good vibrations or god only knows....a second rate imitation would be a cognitive disconnect for many....
If someone does create a a new beach boys musical, i will go with optimistic enthusiam
until then, i have my second row beach boys tix for march 12th and Ill keep seeing them as long as they keep performing....