Do keep in mind that there are 1000 normal theatrical Looney Tunes and Merrie Melodies... and between the 2003 volume and this upcoming one, there will be 116 cartoons on DVD. There's still 884 to go. If they continue with the 60-some-cartoons format, it'll still take around 14-15 volumes to put out ALL of them. While it's likely that Warner is going to take their time with pre-1935 and post-1964 cartoons, that still leaves a HUGE amount of cartoons.
So, even if you just want the best of the best, it'll still take half a dozen volumes.
So, even if you just want the best of the best, it'll still take half a dozen volumes.