There is some more specific information today.
Regarding the the police forces, Barcelona resisted single command from Madrid. Mossos will continue taking orders from Barcelona.
Also, we have specific numbers about the police forces currently present in Catalonia.
>A reported 3,000-4,000 extra state police officers are also being moved up to Catalonia for the referendum. They will join 5,000 state police already based in the region and 17,000 local Mossos.>
Not sure how reliable the Mossos will be, but nearly 10k policemen is not a small number anyway.
What is unclear to me, is what Barcelona wants to get from this. Even if the referendum happens it will have no validity and it will not be enough to declare unilaterally independence. If this was about getting more media attention to the Catalan cause, I'll wait until we have new polls on the independence question; but I doubt the recent events helped their cause much.
Not that Madrid played its cards well during this crisis. https://www.ft.com/content/c12596c0-a06f-11e7-9e4f-7f5e6a7c98a2