Really difficult to say one way or another until there's more agreement. The run-to-run variability is still very high. The 25-30th period seems active, but models aren't even that settled on what day might be of most interest, or if perhaps there could be a multi-day event. Sustained zonal flow can still yield significant events, including ones with multiple significant tornadoes. In the Deep South, embedded shortwaves within the larger regime tend to be responsible for individual events in such setups, and during times of persistent zonal flow, you can end up getting multiple events over the course of several days. They definitely aren't proto-typical setups in the sense of having a negatively-tilted trough ejection and often tend to rely on speed shear and mesoscale interactions, but I certainly wouldn't discount them.
Ensembles generally seem to hint at a generally flat pattern during the period, but the 12Z GEFS, for example, shows angled trough ejection from the desert Southwest into the Mid-South. I'm not really putting much stock into any particular evolution, but rather the presence of synoptic energy overall during that time period, which seems plentiful. Last several runs keep sustained zonal flow in place through the beginning of May, so there would be ample opportunities for severe convection, but more hopefully rain. And who knows, by next week there might be nothing at all on the models.
