Targeting lines could be very useful. However, having multiple customization options would be necessary to prevent them from being overwhelming. IIRC max pt size is still 15. Having 15 individual lines moving all over the place would be immensely distracting.

Options that have them off/on when you target other players/monsters, off/on when other players target other players/monsters, off/on when they only target you, off/on entirely, etc. would all be necessary to adjust to each player's specific needs. Additionally, players should have the option of allowing which specific player's lines they wish to see. Maybe i don't need to see what my party's conjurer is targeting, but maybe i do want to see what my party's tank is locking onto.



All that said, the game should seek to maximize their usefulness if they're implemented. One of the issues this game currently has is that it's difficult to determine the proper casting distance between yourself and your target. It's easy to feel like you're close enough to cast cure on a party member when you're really off by a few steps. IMO this is huge hassle and even makes it a problem for people wishing to stay out of aoe monster range while still wanting to target pt members.

Targeting lines could easily absolve that issue by either having a different thickness (for example, a faded line connecting to your target when too far away but bright and bold when within casting distance) or by using arrows that merge into a single line the closer you get. For example, if someone was 10 steps away from casting distance, the targeting line might look like -> -> -> -> but as the player moves closer it solidifies into --->-> and at proper casting distance the line would just be solid and bold.

Finally, since it's in the same discussion as FFXII targeting, i think that aoe spheres should be added to the game. Having an aoe sphere of what will be affected by your spells would help players a great deal by letting them know exactly where they need to cast for maximum effect.

I think adding lines and spheres would serve the players well by adding to ease of use and by allowing players to make more accurate decisions while playing. Adding features like these would continue to help smooth out gameplay and make battles more about fighting the monster, and less about fighting the interface.