@joho @skulesz @EUCommission
Now if I were to comment on train travel... Portugal is lacking cross-border long-distance travel - some will insist this is because it's not "profitable" or "sustainable", but there's still no night train out of Lisbon, nor some daytime Intercity-like service. IIRC there are currently two links, Celta (which could be described as a regional service, albeit labeled "International") and the regional Entroncamento-Badajoz (not considered "International").
Reportedly Renfe has had interest in extending services to Lisbon, and CP has had some degree of interest (or maybe it was preference?) in bringing back Sud. At the very least, a good night service would allow connecting with daytime higher-speed services once in Spain or France, and I seriously doubt it'd not have demand.
Local travel isn't much better, part of the capital area has been for years with worse service on weekends and holidays, and besides less frequent services, this even includes a transfer with 23 minutes between trains in one direction of what is a route with high demand.
There may currently be a shortage of rolling stock, but that doesn't explain the apparent slowness in putting long distance railcars back into service (there's reportedly a too big backlog of these, while Intercity services face high demand) or the above mentioned worse commuter service (the previous offering, much better, needed less rolling stock...).
(A note re: .pt-.es cross-border travel, just in case anyone wonders about that: gauge is not the issue. ATP, electrification and certification are the stumbling blocks, but gauge has not been an issue for years with gauge changers and compatible rolling stock, including high-speed trainsets.)