jerrydf
I would think every developer will ignore Sonar from now on, unless an agreement on moving forwards is reached very soon. Why put development into the detail of non-existent platforms? Most of these developers are small businesses which can't afford unnecessary overheads.
jdf
SPLAT has just become an easier platform to support for Waves though because its likely that users who stick around will be on 2017-10. Monthly updates were probably not popular with the developers now Waves pretty much know that if something breaks it was not the Cakewalk developers that broke it.
Right now if I was a third party add on developer I wouldn't do anything to alienate the SPLAT users until I know how many decide to carry on using SPLAT; first because they will still be potential customers and second because when they do switch to another platform they probably won't be buying from a developer who abandoned them.
Graham
Windows 10 64 bit - Intel i7-4790, 16GB, 2 x 256GB SSD
Cubase 9.5
Sonar Platinum (Rapture Pro, Z3TA 2, CA2A, plus some other bits)
Delta 24/96, UAD 1, UA25 EX, 2 x MidiSport,
IKMultiMedia - (SampleTank 3, Miroslav 2, Syntronik, TRacks 5, Modo Bass), Band In A Box, Sound Quest, VS Pro, Kinetic, Acid, Sound Forge, Jammer
Waves MaxxVolume, IR 1, Aphex Enhancer, Abbey Plates
Korg Legacy, VStation, Bass Station