The devices are mainly expected to feature processor updates to the 8th Generation of Intel's processors but is also expected to feature cosmetic improvements, including the addition of Black to the range of colors for Surface Pro and Laptop. You'd still have to deal with USB-A and Mini DisplayPort connectors instead of newer USB-C ports, however.
Also read: Microsoft schedules event for October 2 in New York: New Surface Pro incoming? Both the Surface Pro 6 and the Surface Laptop 2 will be pre-installed in the consumer versions of Windows 10 in S-mode. Despite the sad ports situation, there really isn't something fundamentally wrong with the current Surface Pro design, but Microsoft reportedly plans a significant update for the hybrid tablet next year. There's not even USB-C support in store for the new devices, something that's always been missing. Also, there will be other variants with 16GB of RAM, paired with 512GB or 1TB of SSD storage. The new series isn't expected to go big on specifications as the new device is said to come with just 4GB of RAM (for the base model) and an Intel Core m3 SoC. Earlier this year, ZDNet reporter Mary Jo Foley shared that Microsoft could be working on a Surface-branded headset, and Windows Central also heard something about a smart speaker. Notably, the report claims that Microsoft has removed the integration of USB Type-C and Thunderbolt support in the new Surface lineup. This rumor would confirm what was seen in the leaked images of the Surface Laptop 2 from MySmartPrice last month showing no USB-C port. The original Surface Laptop shipped with an Alcantara keyboard, but it seems that not everyone is a fan of the material, and there are still some questions about its long-term durability.
Microsoft already had a black Surface years ago, but for the past five years it only offered silver models. The good news is that both devices will be cheaper than before.