So, to get back on topic, this week's test is going to more interesting, for a start it is live on tv. Also what improvements each team have made to prevent bouncing, those who suffered from it, and the performance of the tyres on longer runs..
There is no quick cure to porpoiseing, to fully cure it requires basically full chassis floor redesign.
A quick fix we might see, is just increase ride height, but that then brings all sorts of other issues, as obviously increasing ride height on cars that depend far more on ground effect now, kind of defeats what you are trying for, which is to run as stiff and low as possible.
Also lifting ride height even by a few mm can kill laptimes by several tenths, so I highly doubt many teams will increase ride height, as if you tell a driver, we can get rid, or at least decrese the bouncing, but you will be half a second a lap slower, none will say ok lets do that.
So pretty sure we will still see a lot of it.
In fact on some circuits even more so than at Barcelona, as that is a very smooth track compared to many.
Obviously on bumpy tracks where ride height varies more then the issue of porpoiseing will be even worse, if not, in some cases positively dangerous.
I worry that as teams will be unlikely to sacrifice performance for safety, (read reduction in porpoiseing) I suspect the FIA might have to step in at some point and mandate the reintroduction of a plank underneath, obviously that will slow the cars drastically and no one wants to see that really.