Question: What will we look like in heaven?
Answer: It is good that we are concerned about the particulars of heaven. The hope of the Christian's calling is essentially heaven (Eph. 4:4, Rom. 8: 24,25). It is in heaven that the Christian enjoys the reservation of incorruptible inheritance (1 Pet. 1: 4).
The Christian shall be like Christ. 1 John 3: 2 is an important verse in answering our question. "Beloved, now are we the sons of God, and it doth not yet appear what we shall be: but we know that, when he shall appear, we shall be like him; for we shall see him as he is." John affirms at least two things: (1) We do not fully know how the Christian will be, and (2) we do know the Christian shall be like Christ (his glorified body).
There is a material and spiritual body. The question was raised, "How are the dead raised up? And with what body do they come?" (1 Cor. 15: 35) There will be in all circumstances, a body (vs. 38). Our present body is called a "natural body," the future body is called "a spiritual body" (vs. 44). There will be a "change" in our body (vss. 51-54). Our natural body is designed for this material realm; the spiritual body will be suited for the spiritual realm. Some scholars believe the spiritual body may not be significantly different in "appearance" from our present bodies. They base this on such matters as Jesus' glorified body and Abraham and Lazarus (John 20: 19-29, intermediate state, Luke 16: 19-31).
Beloved, what ever the true particulars will be, we can be assured the spiritual body will be just as suited for the spiritual realm as our present bodies are for the material realm. "Blessed are they that do his commandments, that they may have right to the tree of life, and may enter in through the gates into the city" (Rev. 22: 14, KJV). Heaven is a prepared place for the prepared people!