In heaven, will we have desires (Catholic)? St. Thomas Aquinas once wrote that in heaven, our desires will be completely at rest. This sounds to me that we will not have any desire in heaven, as there is nothing to desire for. But at the same time he also said that we will continue to seek God in heaven, which seems to imply that we will "desire" God in heaven (also there could be many other things in heaven that will make us to have "desire").

Will we have desires in heaven (please answer according to Catholic understanding)
Catholic theology speaks of The Satiety of the Blessed in the following manner:


  This state of satiety is always new and never passes away. St. Augustine writes: "All our life will be one Amen, one Alleluia. Sadden
  not yourselves by considering this truth in a carnal manner, as if in
  heaven, just as on earth, we could become weary by repeating the
  words: Amen, Alleluia. This heavenly Amen, this Alleluia, will not be
  expressed by sound which passes away, but by the emotions of love, the
  emotions of the soul embraced by love. "Amen" means "It is true."
  "Alleluia" means "praise God." God is the immovable truth, who knows
  neither defect nor progress, neither decline nor growth. He is truth,
  eternal and stable: truth forever incorruptible.
  
  "We shall sing our Amen forever but with a satiety that is insatiable. With satiety, because we live in perfect abundance, but
  with an insatiable satiety, because this good, while it satisfies
  completely, produces also a pleasure ever new. Insatiably satiated
  by this truth, we shall repeat forever: Amen. Rest and gaze: that is
  our eternal Sabbath."


And St. Josemaría Escrivá writes:


  Think how pleasing to God Our Lord is the incense burnt in his honour.
  Think also how little the things of this earth are worth; even as they
  begin they are already ending. In Heaven, instead, a great Love awaits
  you, with no betrayals and no deceptions. The fullness of love, the
  fullness of beauty and greatness and knowledge... And it will never
  cloy: it will satiate, yet still you will want more. - The Forge,
  995.


Therefore Catholic theology speaks of the satiety of the blessed in heaven that is always new, never passes away, is full and complete, yet still wants more i.e., it is an insatiable satiety.