This is self-indulgent but here's an idea of my version of AATLA below:
When Tagah wakes up Aang introduces everybody: Suki,Sokka,Katara, Zuko,and Toph-they recount to him how things changed.
And all Aang's friends are overjoyed that he found another airbender.
After Tagah was healed,they start taking down the campsite to head off on their journey.
"We got everything?" Katara called. Her hair swinging in the breeze and her moon cresent headpiece glinted in the sunlight.
"Just about!" Aang called back while he and Toph gathered the rest of the camping equipment.
"A metal sky bison?" Tagah said in awe,staring wide-eyed at the contraption.
"Pretty much!" Suki giggled at him. "You can ask this guy all but it." Suki gently nudged Sokka's arm.
"Oh,well,I don't mean to brag." Sokka said coyly,waving the compliment away.
"Buuuuut I did make them with my friend,Sai! Our war balloon designs were basically a prototype. See,it started when me,my little sister,and Aang were kids. We were traveling to the Northern Air Temple-"
Suki rolled her eyes with a smile as her husband recounted the events of how the orgins of the airship.
"So,what do you think about him?" Aang slung a bag over his shoulder.
"Ya mean after he wasn't startled by me?" Toph half-joked. "Seems alright." She shrugged,putting the folded blankets under her arm.
"I'm glad you think so." Aang said. "But I meant something else. Like, does he smell better than me?" He jested.
"Oh,Spirits. After five years together, don't tell me you're jealous." She teased.
"I don't know. Maybe I should be. Frozen men trapped in ice does seems to be your type." He quipped.
Toph chuckled. "Spirits. Since you're so insecure about it. No. He doesn't smell better than you."
"You better." He bumped his arm with hers.
She raised an eyebrow. "What would you done if I said you didn't?" She challenged, a smile teased at her lips.
"Oh,you know..."He shrugged. "Find a way to leave you stranded out here without anyone noticing."
Toph laughed. The effect of it shot straight into his heart and showed through his smile.
"You're such an asshole." She lightly shoved him and then he swatted her hand away.
On the way towards the airship,laughter was shared between them as they purposely bumped into each other a few times.
Katara and Zuko were laughing at what Suki told them about their four-year old niece:
Before they left,Yue II said that her,Sokka,and her two-year old sister, Nanurjuk were master 'drawers'.
Since Hakoda needed to work twice as hard as them,she vowed to make Hakoda a expert by the time they returned home.
Sokka showed Tagah around the airship, explained the inner workings of it, and how their technology made it fly.
Tagah was marveled at the vessel until he caught a glimpse of green in the corner of his eyes.
Aang lead her onboard with his hand on her back.
The earthbender gently tugged on his sleeve,turning her face to the side. He leaned down to place a tender kiss on her cheek.
A flash of surprise crossed his face before he immediately schooled his features.
He's been friendly to all her other friends and Aang absolutely adores him.
Aang is excited to have a new friend. He can finally have a mentor for him to explore more potential with his bending.
Although, sometimes the hairs on her neck rose as Toph felt him staring at her.
But she tries to keep her unease to herself. She wanted to chalk it up to it being nothing.
But he's really starting to piss her off. He is willing to talk to everyone but her.
Even if he does,Toph can sense the contempt towards her beneath the lightjabs and supposed jokes.
Perhaps her gut feeling is right about this guy after all.