So I was reading this interesting article on anti-alisting, and it turns out that forcing anti-aliasing from the graphics card's drivers is surprisingly unreliable.
From the same article, I seem to understand that modern graphics cards do not offer the option to directly set Super Sampling Anti-aliasing (SSAA, the best anti-aliasing method in terms of picture quality) from the drivers; SSAA is only an option if the game itself supports it via its options menu.
Which bears the question, will Pillars of Eternity natively support Super Sampling Anti-aliasing (enabling the selection of 2X or 4X SSAA in its options menu)?
Even though SSAA is quite exacting on system resources (and more specifically on video memory), again Pillars of Eternity won't be an extremely demanding game in and of itself—allowing for SSAA would be a nice treat for those who will play it on beefier rigs.
Likewise, native support for MSAA (and perhaps even for those fancy AMD/nVidia proprietary anti-aliasing methods which are really only viable if the game is specifically programmed to support them) would be a nice-to-have feature, because a) it would ensure effectiveness of the selected anti-aliasing option, as opposed to forcing it via graphics card's drivers as illustrated in the article; b) it would be a nice compromise for gamers who want AA but whose rig cannot handle the memory-hungry super sampling.