Is this an actual price cut or just a promotion of sorts while stocks of Xbone/Titanfall bundles are avaliable ?

Yes, they're just killing the remains of life Bone had on the continent

Permanent price cut on this bundle. Not sure what will happen after that. Maybe the standalone version will be 399 or they'll bundle a new game every month..

I cant imagine they would go back to offering a non titanfall console for essentially $160 more after this. Who in their right mind would buy it rather than just wait for the next bundle if theyre willing to do this right now.

Too late: because now more people are aware of the PSN+ value and word of mouth is spreading it. Too soon: because Xbox One has only 3 months of existence and so firts buyers could feel cheated.

welp apparently Microsoft want the X1 to stay relevant only in the Uk and NA

Is this a permanent price cut affecting all SKUs or just for limited time affecting Titanfall bundle?

I told you, it was insane to buy the console now.

I have to think that a day prior to the launch of the Titanfall bundle, Microsoft will drop a bomb and say the price of the Xbox One (non-bundle) is $50-$100 off. It only makes sense. These bundles will fly off the shelves otherwise and be in very limited supply.

Unless that's their plan to sell the non-bundle through a sold out bundle.

Sales  in territories outside the UK won't be too great in this case, Microsoft.