The upcoming generation of ThinkPads generally has better screens (either higher resolutions or IPS instead of TN) than before. In particular, the W540 is supposed to have an IPS screen with a similar (2880x1620) resolution:
The T440p, T540p, and W540 all have buttonless clickpads too, and the latter two are so huge they have numpads; anything from the W series is Way too heavy anyway. The L and E series are out because I'm looking for a high-end system, and in any case they have buttonless clickpads too.
http://news.lenovo.com/article_display.cfm?article_id=1717
http://shop.lenovo.com/us/en/laptops/thinkpad/w-series/w540/