The Latitude series has begun phasing out the proprietary E-port in favor of the more versatile Thunderbolt 3 port. Otherwise, not too much has changed from the outgoing E5570 series.
Thunderbolt 3, Smart Card, fingerprint reader, WWAN/SIM, and NFC options, comfortable keyboard and trackpad, relatively quiet under heavy load, 3x storage bays; NVMe support, MIL STD 810G-certified chassis, wide range of CPU options, above average lid rigidity, low power consumption, very long...
dim backlight, poor colors, poor contrast, limited sRGB coverage, audible HDD; system fan almost always active, no discrete GPU solutions or touchscreen, PWM on all brightness up to 99 percent, trackpad keys could have been firmer, very low quality 768p TN panel, no E-port