I've been doing a bit of experimenting lately and this might be of interest to a few who might want to try this for themselves. Here's the scenario: You have two clips on the timeline, each clip different to the other by reason of location, time of day or any other difference and you want to segue from one to the next, Put a fade transition(I usually set my transitions at 5 seconds duration, up to you how you set yours), then apply, from effects(fx), "blur". Keyframes: zero effect at start(effect should be placed directly under transition and set to same length, by the way), 2 seconds in, apply keyframe and set effect at maximum at that point. 3 seconds in, another keyframe, effect again set at maximum, then, at the end, add final keyframe with effect set at zero, one scene blurs into the next neatly without losing image(the blur transition on its own will also fade to black or chosen colour), another effect that can be used with the fade transition is the TV wall or the mosaic. You might want to toy around here and come up with other combinations!
Have fun with your experiments!
Cheers!
Neil.