Yes, OnePlus 3 looks like a HTC phone
OnePlus 3 is rumored to come as soon as July or August, and here are the photos of the upcoming OnePlus 3.
As you can see, OnePlus 3 looks like OnePlus 2 or even HTC 10. It has a classic fingerprint button that can be seen in most of the smartphones. Also, as you would expect from a flagship phone ( or from any smartphone ) that is introduced in 2016, OnePlus 3 will have a USB Type-C port.
Other specs are SnapDragon 820, 5-inch Full HD display and either 4 or 6GB of RAM.
Source – GSMArena