I cant tell how wide your flooring is (the new stuff) also can tell how much of a height deference it is from the old hardwood to the new hardwood.
But it looks like something you should be able to ramp from one floor to the next, you will need to remove the light colored reducer, then hopefully the distance between the two floors is less than a piece of the new flooring, if you rip the board on the table saw like \_/ you should be able to make a seamless transition, we have the best luck doing this with boards that are 4 inches or more wide, and we have gone up to a 1 inch difference with no problems, just be sure to glue the board in, you may need to add a shim in the middle of the plank for support, we usually do that by ripping a scrap 1 by or 2 by with a 5, 10, or 15 degree angle on the top where the board will rest.
here is some pictures of one we did with a 4 in border piece to cover a 5/8 difference
https://www.facebook.com/media/set/?set ... 572&type=1