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Most likely, they will not bloom this year. There is a chance though that they will grow an offshoot from the main stem and this will bloom.

The red lily beetle is an exotic pest that at the moment there is no cure for other than hand picking. The larvae look like bird excrement since they cover themselves in their own for protection. I have found that blasting them off with the hose or squishing works. The eggs are orange clusters under the leaves, just wipe them off if you see them. Neem oil seems to work somewhat, it at least will smother the eggs. I have heard that coffee grounds around the base of the plants will cover the smell that attracts them. They overwinter in the ground and will flip upside down and remain still if threatened so put a hand underneath when going to grab them. Good luck!!

Just store them is some sawdust or peat moss and place in a cool, dry location.

If there are no other plants in the area that you want, boiling water works very well. Otherwise, the best way will be to dig up the tubers and pull them out. This is tedious, but with a plant like this, it is just necessary.

You can transplant at any time during the warm months, though now would be the ideal time to transplant them, before they get too large. Simply dig up the entire clump and move to the desired location (in similar growing conditions). If necessary, the clumps can be divided into sections and then replanted.

This article has several suggestions to get rid of June bugs: https://www.gardeningknowhow.com/plant-problems/pests/insects/june-bug-beetles.htm