The Samsung Galaxy Tab S4 has received Bluetooth certification confirming both its name and that it will use Bluetooth 5.0.
This is the first time the name Galaxy Tab S4 has been listed, thus far it has been the model name SM-T835/SM-T830 (likely pertaining to the LTE and Wi-Fi only models).
As far as the next Samsung flagship tablet goes, the Galaxy Tab S4 will have a 10.5-inch 2560x1600px display, a Snapdragon 835 with 4GB of RAM, 64GB of storage - expandable through a microSD - and two cameras - likely a 12MP main and an 8MP front one.
We're yet to learn of the announcement date or launch price. The Galaxy Tab S3 was launched in April of 2017 for $600.