In Kobato Episode 20: "...The Travellers", Kobato met Syaoran, Fye, Kurogane and Mokona (all of them looked more mature for me and I think Kurogane and Fye both grew hair). Since Sakura wasn't with them, is it safe to assume that this episode is somehow a sneak peek of the continuation of Tsubasa Reservoir Chronicle ending in the manga showing their continuous journey?
the epilogue ends with Syaoran deciding to go on a journey in order to try and find a way for the soul of clone Syaoran (who is his own father) to be restored to a body, Sakura has revealed that she had a dream which has given her a vision of the future so she can not go on the journey. Apparently in order to escape from the final prison of Fei Wong Reed, Syaoran gave up something. Syaoran gave up being able to settle down in one place so now he's traveling endlessly with Kurogane and Fye (who both decided to go with him) and of course Mokona (their transportation medium).