Gehenna is both literary and geographical in nature. Hell is doctrinal. No one has even told me to go to Gehenna, for example.
The human mind is wired to seek stability over chaos, to desire a foundation upon which to build, a basis for thought. The “older” bible translations rely less on textual criticism and more on the Tradition of the Church - which is much more solid and consistent than the multifarious manuscripts and scholarly opinions employed today. Modern scripture scholarship tends more to entertain all (or at least more) possibilities than preceding generations, with Tradition perhaps considered more a method of nuancing the translation. The problem with this is that, before author set to work, Tradition was all there was to produce the scriptures. All scripture contains a degree of retrospect for example, none of it being recorded as it occurred. To simplify, Paul taught for years before he ever wrote. And, since what he wrote did not conflict with what he taught, even his recollective ability is contained in his writings.
My beef is that a little too much historical-critical methodology has been employed in our age. While it most certainly has its place, its place is not to control or dominate the conversation. We must also recognize this perfectly human attitude which holds that, the further we are away from a given situation, the more we must know about it. Recorded information, such as scripture, being also subject to the observable effects of entropy, and nature abhorring a void, the more opportunity for innovation there is, both in modern thought, and the work it produces. The inculturation of the translators creeps in, and what concerns me is that we live in an age of relativism. Thus, we will see some of this reflected in the intros and footnotes - if not in the translation itself. It is a mindset which cannot help but flavor the work.
Examine a D-R or a Confraternity in comparison to the NAB or /RE. The contrast is less so in the translation itself (although it may be seen), but more so in the introductions and footnotes, which are assembled with a certain level of opinion. The notes and intros in a pocket Confraternity NT are solid and confidence-inspiring to the human mind - exactly as intended in the scriptures. Switch to the NAB and cloudiness and doubt creep in, rather than increased clarity. To me, this demonstrates a greater reliance on “modern” or “current” scholarship and textual criticism, and less on the Tradition of the Church. Simply put, I don’t like it.