Not really. Only 2 "A-model" Ar 234's with trolleys saw actual service trials(as recon planes) with operational units and IIRC they were 4-engined one-of prototypes. The Ar 234B was developed as the first service model, in large part because the Luftwaffe wouldn't accept the trolly idea for a service aircraft.
Although it's really bordering on ASB to have the Ar 234 in operation in 1943, I'm not sure 100 or so planes fitted out as bombers would make that much difference. Use of cluster bombs and other area-denial weapons would render some airfields unusable to a while, but I'm not sure that many parked bombers would be destroyed. While intercepting 460-mph attackers on their inbound flights would be difficult, I presume they would have to enter dives and/or reduce speed somewhat to accurately drop their limited payloads. This would then place them at a real disadvantage when facing high-speed piston engined interceptors that would be positioned advantageously to intercept them on their return flights. While the loss of a large percentage of the attacking force might be a fair trade in a Bodenplatte-type surprise attack, I'm not sure this would be the best use of these jets in 1943. Better use them for recon in preparation for Overlord.