I think that over the next 10 years, more old newspapers will come on line, especially some of the long lost off our streets, more Parish Records will be available on line and my big wish that the GRO will find some way around the law and issue certs. on line.
More of the records held in county archives become available online, and the LMA releases more of its extensive collections online.
Although I sincerely hope that you are right, I wouldn't like to take a bet on it 
When you are in a library, you can whizz through microfilms to find what you want, but you can't do that on a computer online. To be able to access stuff online, it has to be digitised, indexed, transcribed, and stored, and all these things cost money. The records on the LMA pre-1813 are very difficult to photograph and transcribe, because of the condition of the originals. I'd love to see local newspapers online, but unfortunately these would also need to be digitised, transcribed, and cross-referenced, which again would be time-consuming and costly.
I'm not sure which elements of Plummiegirl's predictions you are dubious about - but:
Many more newspapers will appear (Brightsolid have already signed up to digitise the BL collection), the BL is desparate for this to happen because it will make the closure of Colindale more acceptable and raise some much needed funds;
Many more parish records will appear online (the LDS are already putting up digitised PRs and many, many more will follow);
Record offices are less likely to do so much as they are facing massive funding cuts - but they might find a way to raise some funds through putting records online;
The GRO may well follow the GROS in making register info available online, but the future of Civil Registration records is up in the air at present, the last government wanted to make historical registers public (local registers transferring to county record offices or similar to enable public access), who knows what the present lot will do?