A Vortex AMG 4-20x50 Ultra Short and Ultra Light. A Tangent Theta 4-20x50 Ultra Short and Ultra Light. A Nightforce ATACR F1 4-20x50 Ultra Short and Ultra Light... hmmm, starting to see a theme here, anyone who can deliver a scope with a greater than 18x but less than 25x top end magnification with decent low end FOV and a 50mm objective with good glass, good depth, good control of CA in a body shorter than 14" and less than 30oz - and having a great .2 mil hash reticle would be nice as well. I've been asking for this for years, the 4-16's and 3-15's are "old news" now and shooters want a little more, something that fills the gap between 3-15 and 5-25 which is why I've always had my eye on 4-20. The Schmidt Ultra shorts are great, but would love to see a better reticle and get rid of the illumination tumor.
Last year Leupold had the Mark 5HD 3.6-18x44 which had all the right specs but the 35mm tube, 44 objective and only 18x at the top, mine had glass that left me wanting more at the top end. ZCO came out with the ZC420 which fit everything except weight, a little too heavy for an US IMO and of course no one has actually seen one since SHOT 2018. Kahles had the K318i which should have been a K420i and I'd never want anything more, it is my favorite ultra short out right now with glass that bested the Schmidt US 3-20, but it too is a wee bit on the heavy side. Tract came out with the Toric 4-20x50, another that promised to be something special but for a 30mm scope is quite heavy.
While I doubt it will happen in 2019, I'd love to see the Vortex AMG group pull something out of their hat...
That leaves the most anticipated scope for SHOT 2019 as the Burris XTR III 3.3-18x50. Again, I wish they opted for a 3.7-20x50 instead but you've got to take what you can get and this scope check's off the other boxes, so that's what I'm most excited to see. Sadly I won't be at SHOT this year but I do plan a trip to Burris in Colorado sometime in the spring.