This section contains spoilers for: Dragon Age: Inquisition.
Following the assault at Haven, Elan replaces Adan as the Inquisition's new apothecary, regardless of whether or not the latter survived. She makes use of her contacts in the college to keep the Inquisition well-stocked in supplies.
She appears to be sweet on Cabot, the barkeep of the Herald's Rest. In the midst of performing their daily duties, the two carry on what is presumably a courtship, through messages carried by Skyhold's runners (errand girls/boys). Elan can be heard repeatedly requesting the runner to go out of her way to give first priority to deliveries to and from Cabot, even going as far as to offer bribes in the form of "extra compensation".
This section contains spoilers for: Dragon Age: Tevinter Nights.
The plot follows BioWare's own canon, meaning it may not follow some of the player's choices in the games.
Elan is part of the reinforcements that Sutherland recruited to investigate the silence of Skyhold's caretakers and its missing supply caravan. She participates in the fight against the Regret demon, formed out of Solas' murals, that successfully sends it back to the Fade. Elan and Cabot still seem to be sweet on each other, as he compliments her work, calls her "my dear" and is said to love her way of replying.