I think it would be great news for expansion out of Newcastle, as someone who visits the city a lot (with relations) I know that the airport used to be pretty dead when it was just BA, EI, AF and Gill plus the charters.
Like at EMA its great news the arrival of the new no-frills-airlines.
I have heard that FR will be providing new services to NCL using the crews and aircraft coming in from the hubs rather than basing aircraft at NCL with rumours of routes to Girona/Barcelona, Hahn/Frankfurt, Charleoi/Brussels, Bergamo/Milan and Skavsta/Stockholm.
I have heard nothing of EasyJet - will they be expanding from EMA also? They only have about 3 aircraft there compared to about 7 at LPL!
About Snowflake, I heard they are only replacing SAS on routes that are traditional low-cost/charter airline territory like the Med etc. although rumour has it they are going to STN from CPH/OSL!