It has always been a risk to take out a subscription with a Re-Broadcast company as they were not legally registered, or paying the relevant fees to the entertainmnet provider. Further a lot of the frequencies being used were causing nuisance problems in the locality of the transmitters etc,
The real issue though is money, certain companies have the rights (having paid heavily for them) to broadcast, films and footbal over their own networks, and therefore the retransmissions which were basically being stolen from SKY must have been ahuge revenue issue, particularly for instance in bars in the major tourist areas.
It is therefore only a matter of time,
In terms of people with or considering an owned installation (IE large dish and receiver), you have a right to put up your dish(as yet there is no licencsing or restriction on this in Spain) and set the dish to any satellite you want, and providing you have the right receiver you will receive whatever is broadcast as FTA, free of charge.
The British TV authorities have reduced the signal strengths to an absolute minimum to show that they are meeting the regulations in that they are only allowed to broadcast to the UK (Hence the reason we have big dishes), it is unlikely the UK broadcasters on Astra can reduce the signal anymore without causing reception problems in the UK. (Good news for us).
Sky cannot sell you a SKY package to be used outside the UK, due to very similar reasons to those above (IE broadcasters in the countrys relevant have already paid for hte broadcast rights)
Sky packages and systems will still be available in Spain, as there are various ways around the system, no doubt it will cost more as it is now a sellers market., further SKY have had a huge clampdown in the Uk on the multiple cards on one UK address which was one method of providing cards for EU use.
So basically if you have a suitable dish, a FTA receiver or a SKY box, you should be ok for BBC1, ITV, CH4, and CH5 are rumoured to be going FTA soon also,
IF you want SKY sports or SKY Movies that will be more difficult (read costly). but I suspect will still be done.