Step up? Yam to denon

[TimJ]

Hi all,
just wanted thoughts on whether changing my yamaha aventage 810 to the new denon 2200 would be wise? The new Yamaha if i was going to would be 1050 aventage but its 1k. The denon avr 2200 is £500.

The reason is im toying with slowly upgrading to 4k ie tv and amp. Tv can wait as i love my panny plasma but thought that the denon came over as a bargain. My current aventage is great and love it but it has no 4k.
Im now also running ma r90's and ma radious centre and sub.

So would my audio suffer by getting the denon but future proof my plans for half the cost ? Or best to hold out for yamaha to do another new range of amps and get the 1050 on offer ?!? Would i notice a real difference in quality? I do not use a 5k sacd player or

Thoughts appreciated

Edit to say the denon is already on offer at £399.