From what I can see these changes are pretty detrimental to GNE passengers. 

61 - Improved connections to Royal Hospital, but still poor service and pointless doubling back in Murton to get to Peterlee
62/62A - just a renumbered 39A/B however twice the amount of buses to Pennywell, (9 bph combined with the Stagecoach 20 - just overkill)
63 - Ryhope's (and therefore connections from 22/60/61) are lost to Doxford park. People have to now connect at Grangetown. Also loss of connections to Leechmere ASDA)

25 - Even worse connections, my gf lives in Boldon and says that the current timetabling puts the 5/50 leapfrogging eachother. So was this intentional to make the 5 less viable? How can this be if the buses are always rammed (especially at peaks)...
26 - West of Jarrow to South Shields/South Tyneside Hospital is unforgivable. Again buses are usually rammed at peaks. Right now there are 4 (GNE) bph to ST Hospital from around South Shields, this will reduce to 2!
35 - This should have happened a long time ago but with the 30 mins frequency for just the 35. Gives lots of little connections and people who want Sunderland quickly can get the metro. So does this mean the nexus funded section from Town End Farm - Boldon is commercial now? 
36 - How many attempts have they had with this route? So the only way they can make this work is to butcher the 35 so the passengers are shared out. One thing I hated when the 9 went to Lukes Lane was the 2 minute walk from York Road to Lukes Lane but the 30 minute journey on the bus. So if someone who lives in Lukes Lane misses their bus to Sunderland they can walk to York Avenue and catch the bus before the one they aimed for and get there 30 mins earlier... Pure pointless nonsense.

32 - Even longer journey for those in Low Moorsley to Sunderland (by doing the 35A route all day), no benefits of this at all, as well as losing the cross city connections from south of East Herrington). 

So they have done this to tidy up the numbering system yet forgot about the 34? So the services in sunderland are now the 32/33/35/36 (seems really stupid) if they can change the 25 to the 22 then they can change the 34 t0 the 23.