Assuming no abiotic pathway is found, what type of mission will confirm Venusian life? I imagine that everyone will agree it's way too dangerous to bring a sample back to Earth for analysis, so I expect we'll need to send microscopes to Venus. We'll also need to send something down into the appropriate cloud layer to collect a sample. Keeping anything aloft in the atmosphere will be expensive, so I assume that they'll separate those two elements of the mission, Apollo-style. So I expect that they'll send an orbiter containing the microscopes, and then a glider that collects the sample and then fires an engine to get out of the atmosphere and rendezvous with the orbiter (a helicopter would also be possible, but I expect it will be easier to get a plane back out of the atmosphere than to launch some kind of ascent vehicle from a helicopter). If they can design the sample capture mission to preserve the atmospheric pressure, temperature, etc. they might be able to get it up for analysis with the organisms still alive.