本来想盘点一下，算是给自己科普科普，后来一搜，不得了，一大堆，觉得既没水平也没时间，没法深入总结。
就将找到的罗列一下，算是没白浪费时间吧。
互动。百度。
维基：
Sixth-generation jet fighter
Next Generation Air Dominance
波音：
洛基马丁：
诺斯洛普·格鲁门：
6th Generation Fighter
波音：
洛基马丁：
The greatest advantage to 5th Generation fighters is supposed be stealth, the appearance of newer detection systems and more advanced radars will require a new super stealthy aircraft shape to counter counter stealth; a much smaller Radar cross section than on current stealth aircraft like the F-22 Raptor, B-2 Spirit, and unsuccessful designs like the YF-23 Black Widow II will be also needed. A new generation of engines allowning ultra high altitude flight and supercruise speed a lot faster than on current fighters, as well as a new generation of armament like directed energy weapons to attack enemies with the speed of light, are planned to be included.
Their avionics are supposed to feature next generation electronic attack, passive detection, integrated self-protection and cyber attack capabilities.
In summing up sixth gen fighters are expected to outperform current 5th Gen fighters in terms of speed, range, stealth, self-healing structures and to provide the same "technological leap" against modern 5th Gen fighters, as employed by the F-22 Raptor against Soviet 4th Gen fighters like the Su-27 or MiG-29 in the 1990's.
日本六代战机ATD-X心神（Shinshin）
俄罗斯概念Su-50：
Russian Sixth-Generation jet fighter 1 of 8 6th GEN concepts - 2030 2050 timeframe
兵坛2010.04.13美军开始研制第6代战机 预计在2030年左右推出
这是最近的报道：
2015.01.29Get Ready For The Next Generation Fighter Jet
