Fujifilm's X and GFX cameras and lenses are on sale at B&H. With dozens of items receiving some sort of special pricing, it's a great time to check out the product lines. Want to know my picks for the best deals?
The X-T3 and associated lens combos have received a $300 discount. While the X-T4 was recently announced, the X-T3 now represents an even better value, considering not much of significance was added to the X-T4. Instead, you can get the body and excellent 16-80mm for the same price as the X-T4 body alone. 
The X-E3 has dropped by $200, bringing the body under $500. At this price, it's a great option if you're interested in a slim, rangefinder-style camera, or even a competent backup or alternate body style for X-T and X-H users. With the 18-55mm lens, you could get a great rangefinder body and lens for less than $800. Also available is the 23mm f/2, if you want to really embrace the classic rangefinder walk around style, while still being able to swap out other focal lengths — definitely something to consider if you've ever been interested in the X100 line.
If you or someone you know is looking for an all-in-one kit, the X-T200 kits not only offer a savings of $100, but also a bundled copy of Luminar 4. We've covered Luminar 4 in some other pieces, but the headline could read "Feature rich, but easy to use editing software". Taken together, the X-T200 is a great value to get started with, since you'll have access to Fuji's large lens catalog, as well as a great piece of software to edit with.
Lenses
Speaking of Fuji's large lens catalog, there's sale pricing on a number of Fuji's lenses. The discounts are mostly available for Fuji's premium lenses, including cinema zooms, an ultra-wide, and their high-performance telephoto options. Depending on the lens, you may also be eligible to receive a free copy of Luminar 4, an $89 value. Check out Skylum's blog post here for more information on the qualifying lenses, or look under the "Add to Cart" button on B&H for availability.
Probably the most useful is the $300 discount on Fuji's premium standard zoom, the XF 16-55mm f/2.8. With a fast constant aperture and wide to portrait-length zoom range, this is a must-have for serious Fuji shooters. 
To complement the constant f/2.8 of the XF 16-55mm, consider the XF 8-16mm f/2.8. A massive $500 discount brings this lens down to $1,499. Given the high performance of this lens, which can reach an impressively wide 12mm equivalent, I think this is a great option. If you're looking to go wide with Fuji, this is one of your best options.
Rounding out the premium trio of zooms, the XF 50-140mm f/2.8 has received a $300 discount as well. Covering roughly the same range as a 70-200mm on full frame, this lens is an excellent option for sports, events, and portraits. It includes optical stabilization, as well as thorough weather-sealing.
On the GFX side, the GF 50mm has received a significant $500 price cut. If you don't already have this lens, it's a great walk around option for those bodies and is now quite cheap for a new medium format lens.
Last, but certainly not least, the XF 200mm f/2 has received a discount of $1,000. If you're looking for a high-performance prime in the X-mount, this is your ticket. It includes a 1.4x teleconverter and optical image stabilization.
Conclusion
It's nice to see Fuji offer some great savings for users across their line. Whether you're looking to get started with the competent X-T200 kit or have had your eyes on a higher-performance zoom for a while, you can save some cash with these prices. The added value of Luminar 4 for some of the items is just the cherry on top.
"While the X-T4 was recently announced, the X-T3 now represents an even better value, considering not much of significance was added to the X-T4."
That's not an intelligent remark, why would you say that? There are lots of added benefits to the X-T4, with 5-axis image stabilization being one of them. It's true that the X-T3 is a good value now, but perhaps Fuji is trying to blow out old stock. The X-T4 is quite an upgrade. Oh, I don't shoot Fuji, but I do follow the different cameras and lenses of all manufacturers.
IS is the only significant change. Otherwise, the body is bigger and heavier. It's starting to lose the point of being APS-C.