I always choose the best answer. Is this grammatically correct? How to improve it?
Are there still any glowing embers? I don't expect a flame, but is there any sparkle left?
"Yet" is wrong. Leave it out.
Yes, your text is grammatically correct. There isn't much in it that really needs improving, but maybe if it were to be written like this? Is there still a spark? I don't expect a flame, but is there any heat remaining?
yes bordering on no. with a bit of maybe mixed in.