All of the aforementioned devices are not going to sport any bezels and will be taking design cues from the iPhone X. While their official model names will only be leaked in the future, this is going to be a terrific development if it turns out to be true. "We predict 2H18 new iPhones will be equipped with two LCP LTE antenna modules same as iPhone X or more, but with higher specs to support 4x4 MIMO standards". He also suggests the 2018 models will make use of new chips sourced from Intel and Qualcomm for faster LTE transmission. These chips will be able to deliver gigabit LTE speeds, which is equal to 1Gbps downlink. Kuo has stated that unlike the existing dual-SIM offerings that generally had a combination of LTE and 3G connectivity, Apple is planning to bring support for two LTE networks consequently to improve user experience, as reported by Mac Rumors.
It was earlier rumoured that Apple is looking at Intel for supplying a majority of the chips, which could be because of Apple's ongoing legal tussle with Qualcomm. As a LTE antenna FPCB material, LCP is superior to PI in properties related to high-frequency, thermal performance and moisture resistance. These antenna modules will support 4x4 MIMO instead of the current 2x2, similar to Qualcomm's latest modems in chips like the Snapdragon 835.
Achieving faster speeds over LTE is really a matter of supporting a number of new technologies, like carrier aggregation, 4×4 MIMO, and 256QAM.
Kuo claims next-gen iPhones will come with several upgrades to the antenna that will enable these faster speeds, including "liquid crystal polymer" flexible circuit boards to improve wireless reception. The real-world result is faster and more consistent speeds - at least, if you have an Android flagship.