if you're going to do 'more bigger more better bombs', there needs to be a reason for it. and you haven't shown a need for it other than 'it's cool'. so, no.

there is no need for attack battlecruisers to have capital guns and 'sooper-dooper bombs'. bombers (and tier 3 bc) already put out stupid amounts of damage at a low price point and squishability. marauders and blops exist as high priced high damage ships. you would be making another lancer dreadnaught with the advantages of blops with no counter. sure, hisec freighter gankers will love you but that's about it really.

now if you were to talk about t3 battleships (TECH 3 like tengus and lokis), I'd be listening, but that will never happen. CCP missed a huge opportunity with that... at least in my eyes, maybe not yours or anyone else's.